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Finding the Fourth Proportional to 216,857.30, 299,294.51 and 124,958.70

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Solution

The fourth proportional to 216,857.30, 299,294.51 and 124,958.70 is: 172,461.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,857.30 : 299,294.51 = 124,958.70 : x
  2. Step 2: Convert to fraction form
    216,857.30/299,294.51 = 124,958.70/x
  3. Step 3: Cross multiply
    216,857.30x = 299,294.51 × 124,958.70
  4. Step 4: Simplify right side
    216,857.30x = 37,399,452,261.94
  5. Step 5: Solve for x
    x = 37,399,452,261.94/216,857.30
  6. Step 6: Final answer
    x = 172,461.12

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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.