Home / 387,417.06-581,081.85-134,654.94

Finding the Fourth Proportional to 387,417.06, 581,081.85 and 134,654.94

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Solution

The fourth proportional to 387,417.06, 581,081.85 and 134,654.94 is: 201,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,417.06 : 581,081.85 = 134,654.94 : x
  2. Step 2: Convert to fraction form
    387,417.06/581,081.85 = 134,654.94/x
  3. Step 3: Cross multiply
    387,417.06x = 581,081.85 × 134,654.94
  4. Step 4: Simplify right side
    387,417.06x = 78,245,541,646.84
  5. Step 5: Solve for x
    x = 78,245,541,646.84/387,417.06
  6. Step 6: Final answer
    x = 201,967.21

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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.