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Finding the Fourth Proportional to 354,499.70, 531,749.55 and 242,525.30

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Solution

The fourth proportional to 354,499.70, 531,749.55 and 242,525.30 is: 363,787.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,499.70 : 531,749.55 = 242,525.30 : x
  2. Step 2: Convert to fraction form
    354,499.70/531,749.55 = 242,525.30/x
  3. Step 3: Cross multiply
    354,499.70x = 531,749.55 × 242,525.30
  4. Step 4: Simplify right side
    354,499.70x = 128,962,719,138.62
  5. Step 5: Solve for x
    x = 128,962,719,138.62/354,499.70
  6. Step 6: Final answer
    x = 363,787.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.