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Finding the Fourth Proportional to 216,842.11, 299,273.42 and 124,943.80

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Solution

The fourth proportional to 216,842.11, 299,273.42 and 124,943.80 is: 172,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,842.11 : 299,273.42 = 124,943.80 : x
  2. Step 2: Convert to fraction form
    216,842.11/299,273.42 = 124,943.80/x
  3. Step 3: Cross multiply
    216,842.11x = 299,273.42 × 124,943.80
  4. Step 4: Simplify right side
    216,842.11x = 37,392,356,960.89
  5. Step 5: Solve for x
    x = 37,392,356,960.89/216,842.11
  6. Step 6: Final answer
    x = 172,440.48

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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.