Home / 387,781.02-581,357.79-174,392.66

Finding the Fourth Proportional to 387,781.02, 581,357.79 and 174,392.66

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Solution

The fourth proportional to 387,781.02, 581,357.79 and 174,392.66 is: 261,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,781.02 : 581,357.79 = 174,392.66 : x
  2. Step 2: Convert to fraction form
    387,781.02/581,357.79 = 174,392.66/x
  3. Step 3: Cross multiply
    387,781.02x = 581,357.79 × 174,392.66
  4. Step 4: Simplify right side
    387,781.02x = 101,384,532,863.22
  5. Step 5: Solve for x
    x = 101,384,532,863.22/387,781.02
  6. Step 6: Final answer
    x = 261,447.90

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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.