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Finding the Fourth Proportional to 348,508.60, 522,071.70 and 207,849.40

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Solution

The fourth proportional to 348,508.60, 522,071.70 and 207,849.40 is: 311,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,508.60 : 522,071.70 = 207,849.40 : x
  2. Step 2: Convert to fraction form
    348,508.60/522,071.70 = 207,849.40/x
  3. Step 3: Cross multiply
    348,508.60x = 522,071.70 × 207,849.40
  4. Step 4: Simplify right side
    348,508.60x = 108,512,289,601.98
  5. Step 5: Solve for x
    x = 108,512,289,601.98/348,508.60
  6. Step 6: Final answer
    x = 311,361.87

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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.