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Finding the Fourth Proportional to 181,570.78, 272,356.17 and 56,921.50

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Solution

The fourth proportional to 181,570.78, 272,356.17 and 56,921.50 is: 85,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,570.78 : 272,356.17 = 56,921.50 : x
  2. Step 2: Convert to fraction form
    181,570.78/272,356.17 = 56,921.50/x
  3. Step 3: Cross multiply
    181,570.78x = 272,356.17 × 56,921.50
  4. Step 4: Simplify right side
    181,570.78x = 15,502,921,730.66
  5. Step 5: Solve for x
    x = 15,502,921,730.66/181,570.78
  6. Step 6: Final answer
    x = 85,382.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.