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Finding the Fourth Proportional to 345,344.16, 518,016.24 and 167,698.92

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Solution

The fourth proportional to 345,344.16, 518,016.24 and 167,698.92 is: 251,548.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,344.16 : 518,016.24 = 167,698.92 : x
  2. Step 2: Convert to fraction form
    345,344.16/518,016.24 = 167,698.92/x
  3. Step 3: Cross multiply
    345,344.16x = 518,016.24 × 167,698.92
  4. Step 4: Simplify right side
    345,344.16x = 86,870,763,990.46
  5. Step 5: Solve for x
    x = 86,870,763,990.46/345,344.16
  6. Step 6: Final answer
    x = 251,548.38

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.