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Finding the Fourth Proportional to 291,728.70, 437,593.05 and 242,521.20

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Solution

The fourth proportional to 291,728.70, 437,593.05 and 242,521.20 is: 363,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,728.70 : 437,593.05 = 242,521.20 : x
  2. Step 2: Convert to fraction form
    291,728.70/437,593.05 = 242,521.20/x
  3. Step 3: Cross multiply
    291,728.70x = 437,593.05 × 242,521.20
  4. Step 4: Simplify right side
    291,728.70x = 106,125,591,597.66
  5. Step 5: Solve for x
    x = 106,125,591,597.66/291,728.70
  6. Step 6: Final answer
    x = 363,781.80

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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.