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Finding the Fourth Proportional to 579,582.88, 869,281 and 158,760.40

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Solution

The fourth proportional to 579,582.88, 869,281 and 158,760.40 is: 238,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,582.88 : 869,281 = 158,760.40 : x
  2. Step 2: Convert to fraction form
    579,582.88/869,281 = 158,760.40/x
  3. Step 3: Cross multiply
    579,582.88x = 869,281 × 158,760.40
  4. Step 4: Simplify right side
    579,582.88x = 138,007,399,272.40
  5. Step 5: Solve for x
    x = 138,007,399,272.40/579,582.88
  6. Step 6: Final answer
    x = 238,115.04

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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.