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Finding the Fourth Proportional to 478,268.89, 717,382.58 and 178,752.06

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Solution

The fourth proportional to 478,268.89, 717,382.58 and 178,752.06 is: 268,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,268.89 : 717,382.58 = 178,752.06 : x
  2. Step 2: Convert to fraction form
    478,268.89/717,382.58 = 178,752.06/x
  3. Step 3: Cross multiply
    478,268.89x = 717,382.58 × 178,752.06
  4. Step 4: Simplify right side
    478,268.89x = 128,233,613,089.36
  5. Step 5: Solve for x
    x = 128,233,613,089.36/478,268.89
  6. Step 6: Final answer
    x = 268,120.33

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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.