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Finding the Fourth Proportional to 432,927.60, 649,493.80 and 137,439.60

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Solution

The fourth proportional to 432,927.60, 649,493.80 and 137,439.60 is: 206,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,927.60 : 649,493.80 = 137,439.60 : x
  2. Step 2: Convert to fraction form
    432,927.60/649,493.80 = 137,439.60/x
  3. Step 3: Cross multiply
    432,927.60x = 649,493.80 × 137,439.60
  4. Step 4: Simplify right side
    432,927.60x = 89,266,168,074.48
  5. Step 5: Solve for x
    x = 89,266,168,074.48/432,927.60
  6. Step 6: Final answer
    x = 206,191.91

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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.