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Finding the Fourth Proportional to 501,642.95, 752,462.36 and 181,719.91

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Solution

The fourth proportional to 501,642.95, 752,462.36 and 181,719.91 is: 272,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,642.95 : 752,462.36 = 181,719.91 : x
  2. Step 2: Convert to fraction form
    501,642.95/752,462.36 = 181,719.91/x
  3. Step 3: Cross multiply
    501,642.95x = 752,462.36 × 181,719.91
  4. Step 4: Simplify right side
    501,642.95x = 136,737,388,575.28
  5. Step 5: Solve for x
    x = 136,737,388,575.28/501,642.95
  6. Step 6: Final answer
    x = 272,579.11

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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.