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Finding the Fourth Proportional to 339,612.42, 509,510.51 and 114,972.88

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Solution

The fourth proportional to 339,612.42, 509,510.51 and 114,972.88 is: 172,490.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,612.42 : 509,510.51 = 114,972.88 : x
  2. Step 2: Convert to fraction form
    339,612.42/509,510.51 = 114,972.88/x
  3. Step 3: Cross multiply
    339,612.42x = 509,510.51 × 114,972.88
  4. Step 4: Simplify right side
    339,612.42x = 58,579,890,724.97
  5. Step 5: Solve for x
    x = 58,579,890,724.97/339,612.42
  6. Step 6: Final answer
    x = 172,490.43

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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.