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Finding the Fourth Proportional to 308,638.76, 462,429.02 and 207,246.76

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Solution

The fourth proportional to 308,638.76, 462,429.02 and 207,246.76 is: 310,514.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,638.76 : 462,429.02 = 207,246.76 : x
  2. Step 2: Convert to fraction form
    308,638.76/462,429.02 = 207,246.76/x
  3. Step 3: Cross multiply
    308,638.76x = 462,429.02 × 207,246.76
  4. Step 4: Simplify right side
    308,638.76x = 95,836,916,124.98
  5. Step 5: Solve for x
    x = 95,836,916,124.98/308,638.76
  6. Step 6: Final answer
    x = 310,514.84

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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.