Home / 279,400.72-385,572.92-152,077.18

Finding the Fourth Proportional to 279,400.72, 385,572.92 and 152,077.18

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Solution

The fourth proportional to 279,400.72, 385,572.92 and 152,077.18 is: 209,866.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,400.72 : 385,572.92 = 152,077.18 : x
  2. Step 2: Convert to fraction form
    279,400.72/385,572.92 = 152,077.18/x
  3. Step 3: Cross multiply
    279,400.72x = 385,572.92 × 152,077.18
  4. Step 4: Simplify right side
    279,400.72x = 58,636,842,357.97
  5. Step 5: Solve for x
    x = 58,636,842,357.97/279,400.72
  6. Step 6: Final answer
    x = 209,866.47

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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.