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Finding the Fourth Proportional to 257,812.31, 386,712.51 and 151,868.34

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Solution

The fourth proportional to 257,812.31, 386,712.51 and 151,868.34 is: 227,799.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,812.31 : 386,712.51 = 151,868.34 : x
  2. Step 2: Convert to fraction form
    257,812.31/386,712.51 = 151,868.34/x
  3. Step 3: Cross multiply
    257,812.31x = 386,712.51 × 151,868.34
  4. Step 4: Simplify right side
    257,812.31x = 58,729,386,950.93
  5. Step 5: Solve for x
    x = 58,729,386,950.93/257,812.31
  6. Step 6: Final answer
    x = 227,799.00

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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.