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Finding the Fourth Proportional to 501,643.92, 752,463.81 and 181,720.88

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Solution

The fourth proportional to 501,643.92, 752,463.81 and 181,720.88 is: 272,580.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,643.92 : 752,463.81 = 181,720.88 : x
  2. Step 2: Convert to fraction form
    501,643.92/752,463.81 = 181,720.88/x
  3. Step 3: Cross multiply
    501,643.92x = 752,463.81 × 181,720.88
  4. Step 4: Simplify right side
    501,643.92x = 136,738,382,664.47
  5. Step 5: Solve for x
    x = 136,738,382,664.47/501,643.92
  6. Step 6: Final answer
    x = 272,580.57

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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.