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Finding the Fourth Proportional to 230,036.88, 317,377.62 and 129,415.44

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Solution

The fourth proportional to 230,036.88, 317,377.62 and 129,415.44 is: 178,552.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,036.88 : 317,377.62 = 129,415.44 : x
  2. Step 2: Convert to fraction form
    230,036.88/317,377.62 = 129,415.44/x
  3. Step 3: Cross multiply
    230,036.88x = 317,377.62 × 129,415.44
  4. Step 4: Simplify right side
    230,036.88x = 41,073,564,338.45
  5. Step 5: Solve for x
    x = 41,073,564,338.45/230,036.88
  6. Step 6: Final answer
    x = 178,552.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.