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Finding the Fourth Proportional to 348,545.60, 522,818.40 and 259,972.10

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Solution

The fourth proportional to 348,545.60, 522,818.40 and 259,972.10 is: 389,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,545.60 : 522,818.40 = 259,972.10 : x
  2. Step 2: Convert to fraction form
    348,545.60/522,818.40 = 259,972.10/x
  3. Step 3: Cross multiply
    348,545.60x = 522,818.40 × 259,972.10
  4. Step 4: Simplify right side
    348,545.60x = 135,918,197,366.64
  5. Step 5: Solve for x
    x = 135,918,197,366.64/348,545.60
  6. Step 6: Final answer
    x = 389,958.15

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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.