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Finding the Fourth Proportional to 353,207.70, 529,811.55 and 142,737.30

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Solution

The fourth proportional to 353,207.70, 529,811.55 and 142,737.30 is: 214,105.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,207.70 : 529,811.55 = 142,737.30 : x
  2. Step 2: Convert to fraction form
    353,207.70/529,811.55 = 142,737.30/x
  3. Step 3: Cross multiply
    353,207.70x = 529,811.55 × 142,737.30
  4. Step 4: Simplify right side
    353,207.70x = 75,623,870,155.82
  5. Step 5: Solve for x
    x = 75,623,870,155.82/353,207.70
  6. Step 6: Final answer
    x = 214,105.95

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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.