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Finding the Fourth Proportional to 348,509.60, 522,073.20 and 207,850.40

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Solution

The fourth proportional to 348,509.60, 522,073.20 and 207,850.40 is: 311,363.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,509.60 : 522,073.20 = 207,850.40 : x
  2. Step 2: Convert to fraction form
    348,509.60/522,073.20 = 207,850.40/x
  3. Step 3: Cross multiply
    348,509.60x = 522,073.20 × 207,850.40
  4. Step 4: Simplify right side
    348,509.60x = 108,513,123,449.28
  5. Step 5: Solve for x
    x = 108,513,123,449.28/348,509.60
  6. Step 6: Final answer
    x = 311,363.37

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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.