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Finding the Fourth Proportional to 345,837.60, 518,853.60 and 168,350.40

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Solution

The fourth proportional to 345,837.60, 518,853.60 and 168,350.40 is: 252,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,837.60 : 518,853.60 = 168,350.40 : x
  2. Step 2: Convert to fraction form
    345,837.60/518,853.60 = 168,350.40/x
  3. Step 3: Cross multiply
    345,837.60x = 518,853.60 × 168,350.40
  4. Step 4: Simplify right side
    345,837.60x = 87,349,211,101.44
  5. Step 5: Solve for x
    x = 87,349,211,101.44/345,837.60
  6. Step 6: Final answer
    x = 252,572.92

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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.