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Finding the Fourth Proportional to 151,428.80, 227,143.20 and 51,701.60

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Solution

The fourth proportional to 151,428.80, 227,143.20 and 51,701.60 is: 77,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,428.80 : 227,143.20 = 51,701.60 : x
  2. Step 2: Convert to fraction form
    151,428.80/227,143.20 = 51,701.60/x
  3. Step 3: Cross multiply
    151,428.80x = 227,143.20 × 51,701.60
  4. Step 4: Simplify right side
    151,428.80x = 11,743,666,869.12
  5. Step 5: Solve for x
    x = 11,743,666,869.12/151,428.80
  6. Step 6: Final answer
    x = 77,552.40

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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.