Home / 387,811.02-581,726.25-107,330.70

Finding the Fourth Proportional to 387,811.02, 581,726.25 and 107,330.70

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Solution

The fourth proportional to 387,811.02, 581,726.25 and 107,330.70 is: 160,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,811.02 : 581,726.25 = 107,330.70 : x
  2. Step 2: Convert to fraction form
    387,811.02/581,726.25 = 107,330.70/x
  3. Step 3: Cross multiply
    387,811.02x = 581,726.25 × 107,330.70
  4. Step 4: Simplify right side
    387,811.02x = 62,437,085,620.88
  5. Step 5: Solve for x
    x = 62,437,085,620.88/387,811.02
  6. Step 6: Final answer
    x = 160,998.74

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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.