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Finding the Fourth Proportional to 268,227.28, 402,428.28 and 127,967.76

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Solution

The fourth proportional to 268,227.28, 402,428.28 and 127,967.76 is: 191,993.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,227.28 : 402,428.28 = 127,967.76 : x
  2. Step 2: Convert to fraction form
    268,227.28/402,428.28 = 127,967.76/x
  3. Step 3: Cross multiply
    268,227.28x = 402,428.28 × 127,967.76
  4. Step 4: Simplify right side
    268,227.28x = 51,497,845,552.25
  5. Step 5: Solve for x
    x = 51,497,845,552.25/268,227.28
  6. Step 6: Final answer
    x = 191,993.32

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1.5x scale

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.