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Finding the Fourth Proportional to 279,325.56, 385,468.56 and 152,001.12

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Solution

The fourth proportional to 279,325.56, 385,468.56 and 152,001.12 is: 209,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,325.56 : 385,468.56 = 152,001.12 : x
  2. Step 2: Convert to fraction form
    279,325.56/385,468.56 = 152,001.12/x
  3. Step 3: Cross multiply
    279,325.56x = 385,468.56 × 152,001.12
  4. Step 4: Simplify right side
    279,325.56x = 58,591,652,844.79
  5. Step 5: Solve for x
    x = 58,591,652,844.79/279,325.56
  6. Step 6: Final answer
    x = 209,761.16

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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.