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Finding the Fourth Proportional to 331,649.55, 457,677.92 and 188,417.45

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Solution

The fourth proportional to 331,649.55, 457,677.92 and 188,417.45 is: 260,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,649.55 : 457,677.92 = 188,417.45 : x
  2. Step 2: Convert to fraction form
    331,649.55/457,677.92 = 188,417.45/x
  3. Step 3: Cross multiply
    331,649.55x = 457,677.92 × 188,417.45
  4. Step 4: Simplify right side
    331,649.55x = 86,234,506,607.70
  5. Step 5: Solve for x
    x = 86,234,506,607.70/331,649.55
  6. Step 6: Final answer
    x = 260,016.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.