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Finding the Fourth Proportional to 505,633.26, 758,156.45 and 239,391.53

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Solution

The fourth proportional to 505,633.26, 758,156.45 and 239,391.53 is: 358,948.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,633.26 : 758,156.45 = 239,391.53 : x
  2. Step 2: Convert to fraction form
    505,633.26/758,156.45 = 239,391.53/x
  3. Step 3: Cross multiply
    505,633.26x = 758,156.45 × 239,391.53
  4. Step 4: Simplify right side
    505,633.26x = 181,496,227,557.13
  5. Step 5: Solve for x
    x = 181,496,227,557.13/505,633.26
  6. Step 6: Final answer
    x = 358,948.36

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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.