Home / 386,117.10-579,175.65-119,959.20

Finding the Fourth Proportional to 386,117.10, 579,175.65 and 119,959.20

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Solution

The fourth proportional to 386,117.10, 579,175.65 and 119,959.20 is: 179,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,117.10 : 579,175.65 = 119,959.20 : x
  2. Step 2: Convert to fraction form
    386,117.10/579,175.65 = 119,959.20/x
  3. Step 3: Cross multiply
    386,117.10x = 579,175.65 × 119,959.20
  4. Step 4: Simplify right side
    386,117.10x = 69,477,447,633.48
  5. Step 5: Solve for x
    x = 69,477,447,633.48/386,117.10
  6. Step 6: Final answer
    x = 179,938.80

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Similar ratio
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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.