Home / 279,478.28-385,669.68-152,151.32

Finding the Fourth Proportional to 279,478.28, 385,669.68 and 152,151.32

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Solution

The fourth proportional to 279,478.28, 385,669.68 and 152,151.32 is: 209,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,478.28 : 385,669.68 = 152,151.32 : x
  2. Step 2: Convert to fraction form
    279,478.28/385,669.68 = 152,151.32/x
  3. Step 3: Cross multiply
    279,478.28x = 385,669.68 × 152,151.32
  4. Step 4: Simplify right side
    279,478.28x = 58,680,150,895.98
  5. Step 5: Solve for x
    x = 58,680,150,895.98/279,478.28
  6. Step 6: Final answer
    x = 209,963.19

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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.