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Finding the Fourth Proportional to 458,869.74, 688,304.61 and 143,351.52

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Solution

The fourth proportional to 458,869.74, 688,304.61 and 143,351.52 is: 215,027.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,869.74 : 688,304.61 = 143,351.52 : x
  2. Step 2: Convert to fraction form
    458,869.74/688,304.61 = 143,351.52/x
  3. Step 3: Cross multiply
    458,869.74x = 688,304.61 × 143,351.52
  4. Step 4: Simplify right side
    458,869.74x = 98,669,512,066.51
  5. Step 5: Solve for x
    x = 98,669,512,066.51/458,869.74
  6. Step 6: Final answer
    x = 215,027.28

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Similar ratio
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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.