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Finding the Fourth Proportional to 153,246.45, 211,476.81 and 88,718.42

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Solution

The fourth proportional to 153,246.45, 211,476.81 and 88,718.42 is: 122,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,246.45 : 211,476.81 = 88,718.42 : x
  2. Step 2: Convert to fraction form
    153,246.45/211,476.81 = 88,718.42/x
  3. Step 3: Cross multiply
    153,246.45x = 211,476.81 × 88,718.42
  4. Step 4: Simplify right side
    153,246.45x = 18,761,888,812.19
  5. Step 5: Solve for x
    x = 18,761,888,812.19/153,246.45
  6. Step 6: Final answer
    x = 122,429.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.