Home / 399,146.64-598,815.66-132,909.60

Finding the Fourth Proportional to 399,146.64, 598,815.66 and 132,909.60

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Solution

The fourth proportional to 399,146.64, 598,815.66 and 132,909.60 is: 199,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,146.64 : 598,815.66 = 132,909.60 : x
  2. Step 2: Convert to fraction form
    399,146.64/598,815.66 = 132,909.60/x
  3. Step 3: Cross multiply
    399,146.64x = 598,815.66 × 132,909.60
  4. Step 4: Simplify right side
    399,146.64x = 79,588,349,844.34
  5. Step 5: Solve for x
    x = 79,588,349,844.34/399,146.64
  6. Step 6: Final answer
    x = 199,396.27

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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.