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Finding the Fourth Proportional to 215,559.62, 297,479.69 and 124,915.76

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Solution

The fourth proportional to 215,559.62, 297,479.69 and 124,915.76 is: 172,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,559.62 : 297,479.69 = 124,915.76 : x
  2. Step 2: Convert to fraction form
    215,559.62/297,479.69 = 124,915.76/x
  3. Step 3: Cross multiply
    215,559.62x = 297,479.69 × 124,915.76
  4. Step 4: Simplify right side
    215,559.62x = 37,159,899,448.94
  5. Step 5: Solve for x
    x = 37,159,899,448.94/215,559.62
  6. Step 6: Final answer
    x = 172,388.04

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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.