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Finding the Fourth Proportional to 304,360.96, 456,721.92 and 138,146.56

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Solution

The fourth proportional to 304,360.96, 456,721.92 and 138,146.56 is: 207,301.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,360.96 : 456,721.92 = 138,146.56 : x
  2. Step 2: Convert to fraction form
    304,360.96/456,721.92 = 138,146.56/x
  3. Step 3: Cross multiply
    304,360.96x = 456,721.92 × 138,146.56
  4. Step 4: Simplify right side
    304,360.96x = 63,094,562,124.60
  5. Step 5: Solve for x
    x = 63,094,562,124.60/304,360.96
  6. Step 6: Final answer
    x = 207,301.76

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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.