Home / 343,733.76-515,533.80-172,909.92

Finding the Fourth Proportional to 343,733.76, 515,533.80 and 172,909.92

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Solution

The fourth proportional to 343,733.76, 515,533.80 and 172,909.92 is: 259,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,733.76 : 515,533.80 = 172,909.92 : x
  2. Step 2: Convert to fraction form
    343,733.76/515,533.80 = 172,909.92/x
  3. Step 3: Cross multiply
    343,733.76x = 515,533.80 × 172,909.92
  4. Step 4: Simplify right side
    343,733.76x = 89,140,908,115.30
  5. Step 5: Solve for x
    x = 89,140,908,115.30/343,733.76
  6. Step 6: Final answer
    x = 259,331.26

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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.