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Finding the Fourth Proportional to 281,230.14, 388,278.72 and 250,963.42

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Solution

The fourth proportional to 281,230.14, 388,278.72 and 250,963.42 is: 346,491.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,230.14 : 388,278.72 = 250,963.42 : x
  2. Step 2: Convert to fraction form
    281,230.14/388,278.72 = 250,963.42/x
  3. Step 3: Cross multiply
    281,230.14x = 388,278.72 × 250,963.42
  4. Step 4: Simplify right side
    281,230.14x = 97,443,755,484.42
  5. Step 5: Solve for x
    x = 97,443,755,484.42/281,230.14
  6. Step 6: Final answer
    x = 346,491.15

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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.