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Finding the Fourth Proportional to 304,121.60, 456,139.20 and 104,451.20

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Solution

The fourth proportional to 304,121.60, 456,139.20 and 104,451.20 is: 156,661.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,121.60 : 456,139.20 = 104,451.20 : x
  2. Step 2: Convert to fraction form
    304,121.60/456,139.20 = 104,451.20/x
  3. Step 3: Cross multiply
    304,121.60x = 456,139.20 × 104,451.20
  4. Step 4: Simplify right side
    304,121.60x = 47,644,286,807.04
  5. Step 5: Solve for x
    x = 47,644,286,807.04/304,121.60
  6. Step 6: Final answer
    x = 156,661.96

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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.