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Finding the Fourth Proportional to 577,159.88, 865,739.82 and 156,435.74

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Solution

The fourth proportional to 577,159.88, 865,739.82 and 156,435.74 is: 234,653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,159.88 : 865,739.82 = 156,435.74 : x
  2. Step 2: Convert to fraction form
    577,159.88/865,739.82 = 156,435.74/x
  3. Step 3: Cross multiply
    577,159.88x = 865,739.82 × 156,435.74
  4. Step 4: Simplify right side
    577,159.88x = 135,432,649,389.17
  5. Step 5: Solve for x
    x = 135,432,649,389.17/577,159.88
  6. Step 6: Final answer
    x = 234,653.61

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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.