Home / 279,248.30-385,350.48-155,061.58

Finding the Fourth Proportional to 279,248.30, 385,350.48 and 155,061.58

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Solution

The fourth proportional to 279,248.30, 385,350.48 and 155,061.58 is: 213,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,248.30 : 385,350.48 = 155,061.58 : x
  2. Step 2: Convert to fraction form
    279,248.30/385,350.48 = 155,061.58/x
  3. Step 3: Cross multiply
    279,248.30x = 385,350.48 × 155,061.58
  4. Step 4: Simplify right side
    279,248.30x = 59,753,052,355.81
  5. Step 5: Solve for x
    x = 59,753,052,355.81/279,248.30
  6. Step 6: Final answer
    x = 213,978.21

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1.5x scale

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.