Home / 279,470.25-385,669.86-152,146.76

Finding the Fourth Proportional to 279,470.25, 385,669.86 and 152,146.76

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Solution

The fourth proportional to 279,470.25, 385,669.86 and 152,146.76 is: 209,963.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,470.25 : 385,669.86 = 152,146.76 : x
  2. Step 2: Convert to fraction form
    279,470.25/385,669.86 = 152,146.76/x
  3. Step 3: Cross multiply
    279,470.25x = 385,669.86 × 152,146.76
  4. Step 4: Simplify right side
    279,470.25x = 58,678,417,129.75
  5. Step 5: Solve for x
    x = 58,678,417,129.75/279,470.25
  6. Step 6: Final answer
    x = 209,963.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.