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Finding the Fourth Proportional to 275,286.80, 412,411.80 and 141,712.40

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Solution

The fourth proportional to 275,286.80, 412,411.80 and 141,712.40 is: 212,301.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,286.80 : 412,411.80 = 141,712.40 : x
  2. Step 2: Convert to fraction form
    275,286.80/412,411.80 = 141,712.40/x
  3. Step 3: Cross multiply
    275,286.80x = 412,411.80 × 141,712.40
  4. Step 4: Simplify right side
    275,286.80x = 58,443,865,966.32
  5. Step 5: Solve for x
    x = 58,443,865,966.32/275,286.80
  6. Step 6: Final answer
    x = 212,301.74

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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.