Home / 387,434.33-581,135.39-134,772.04

Finding the Fourth Proportional to 387,434.33, 581,135.39 and 134,772.04

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Solution

The fourth proportional to 387,434.33, 581,135.39 and 134,772.04 is: 202,152.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,434.33 : 581,135.39 = 134,772.04 : x
  2. Step 2: Convert to fraction form
    387,434.33/581,135.39 = 134,772.04/x
  3. Step 3: Cross multiply
    387,434.33x = 581,135.39 × 134,772.04
  4. Step 4: Simplify right side
    387,434.33x = 78,320,802,026.50
  5. Step 5: Solve for x
    x = 78,320,802,026.50/387,434.33
  6. Step 6: Final answer
    x = 202,152.46

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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.