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Finding the Fourth Proportional to 281,269.85, 423,411.12 and 252,335.84

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Solution

The fourth proportional to 281,269.85, 423,411.12 and 252,335.84 is: 379,855.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,269.85 : 423,411.12 = 252,335.84 : x
  2. Step 2: Convert to fraction form
    281,269.85/423,411.12 = 252,335.84/x
  3. Step 3: Cross multiply
    281,269.85x = 423,411.12 × 252,335.84
  4. Step 4: Simplify right side
    281,269.85x = 106,841,798,513.49
  5. Step 5: Solve for x
    x = 106,841,798,513.49/281,269.85
  6. Step 6: Final answer
    x = 379,855.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.