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Finding the Fourth Proportional to 317,751.66, 438,449.76 and 181,764

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Solution

The fourth proportional to 317,751.66, 438,449.76 and 181,764 is: 250,807.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,751.66 : 438,449.76 = 181,764 : x
  2. Step 2: Convert to fraction form
    317,751.66/438,449.76 = 181,764/x
  3. Step 3: Cross multiply
    317,751.66x = 438,449.76 × 181,764
  4. Step 4: Simplify right side
    317,751.66x = 79,694,382,176.64
  5. Step 5: Solve for x
    x = 79,694,382,176.64/317,751.66
  6. Step 6: Final answer
    x = 250,807.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.