Home / 387,677.48-581,465.16-134,904.02

Finding the Fourth Proportional to 387,677.48, 581,465.16 and 134,904.02

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Solution

The fourth proportional to 387,677.48, 581,465.16 and 134,904.02 is: 202,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,677.48 : 581,465.16 = 134,904.02 : x
  2. Step 2: Convert to fraction form
    387,677.48/581,465.16 = 134,904.02/x
  3. Step 3: Cross multiply
    387,677.48x = 581,465.16 × 134,904.02
  4. Step 4: Simplify right side
    387,677.48x = 78,441,984,666.62
  5. Step 5: Solve for x
    x = 78,441,984,666.62/387,677.48
  6. Step 6: Final answer
    x = 202,338.26

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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.