Home / 352,006.20-528,009.30-115,291.80

Finding the Fourth Proportional to 352,006.20, 528,009.30 and 115,291.80

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Solution

The fourth proportional to 352,006.20, 528,009.30 and 115,291.80 is: 172,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,006.20 : 528,009.30 = 115,291.80 : x
  2. Step 2: Convert to fraction form
    352,006.20/528,009.30 = 115,291.80/x
  3. Step 3: Cross multiply
    352,006.20x = 528,009.30 × 115,291.80
  4. Step 4: Simplify right side
    352,006.20x = 60,875,142,613.74
  5. Step 5: Solve for x
    x = 60,875,142,613.74/352,006.20
  6. Step 6: Final answer
    x = 172,937.70

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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.