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Finding the Fourth Proportional to 603,670.60, 905,505.90 and 160,438.60

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Solution

The fourth proportional to 603,670.60, 905,505.90 and 160,438.60 is: 240,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,670.60 : 905,505.90 = 160,438.60 : x
  2. Step 2: Convert to fraction form
    603,670.60/905,505.90 = 160,438.60/x
  3. Step 3: Cross multiply
    603,670.60x = 905,505.90 × 160,438.60
  4. Step 4: Simplify right side
    603,670.60x = 145,278,098,887.74
  5. Step 5: Solve for x
    x = 145,278,098,887.74/603,670.60
  6. Step 6: Final answer
    x = 240,657.90

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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.