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Finding the Fourth Proportional to 301,345.28, 451,467 and 141,127.28

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Solution

The fourth proportional to 301,345.28, 451,467 and 141,127.28 is: 211,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,345.28 : 451,467 = 141,127.28 : x
  2. Step 2: Convert to fraction form
    301,345.28/451,467 = 141,127.28/x
  3. Step 3: Cross multiply
    301,345.28x = 451,467 × 141,127.28
  4. Step 4: Simplify right side
    301,345.28x = 63,714,309,719.76
  5. Step 5: Solve for x
    x = 63,714,309,719.76/301,345.28
  6. Step 6: Final answer
    x = 211,432.91

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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.