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Finding the Fourth Proportional to 279,132.55, 385,264.16 and 183,648.13

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Solution

The fourth proportional to 279,132.55, 385,264.16 and 183,648.13 is: 253,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,132.55 : 385,264.16 = 183,648.13 : x
  2. Step 2: Convert to fraction form
    279,132.55/385,264.16 = 183,648.13/x
  3. Step 3: Cross multiply
    279,132.55x = 385,264.16 × 183,648.13
  4. Step 4: Simplify right side
    279,132.55x = 70,753,042,540.02
  5. Step 5: Solve for x
    x = 70,753,042,540.02/279,132.55
  6. Step 6: Final answer
    x = 253,474.71

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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.