Home / 328,743.44-493,129.24-129,107.10

Finding the Fourth Proportional to 328,743.44, 493,129.24 and 129,107.10

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Solution

The fourth proportional to 328,743.44, 493,129.24 and 129,107.10 is: 193,666.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,743.44 : 493,129.24 = 129,107.10 : x
  2. Step 2: Convert to fraction form
    328,743.44/493,129.24 = 129,107.10/x
  3. Step 3: Cross multiply
    328,743.44x = 493,129.24 × 129,107.10
  4. Step 4: Simplify right side
    328,743.44x = 63,666,486,101.60
  5. Step 5: Solve for x
    x = 63,666,486,101.60/328,743.44
  6. Step 6: Final answer
    x = 193,666.18

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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.