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Finding the Fourth Proportional to 253,807.60, 380,711.40 and 226,251.40

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Solution

The fourth proportional to 253,807.60, 380,711.40 and 226,251.40 is: 339,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,807.60 : 380,711.40 = 226,251.40 : x
  2. Step 2: Convert to fraction form
    253,807.60/380,711.40 = 226,251.40/x
  3. Step 3: Cross multiply
    253,807.60x = 380,711.40 × 226,251.40
  4. Step 4: Simplify right side
    253,807.60x = 86,136,487,245.96
  5. Step 5: Solve for x
    x = 86,136,487,245.96/253,807.60
  6. Step 6: Final answer
    x = 339,377.10

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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.