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Finding the Fourth Proportional to 250,030.85, 375,008.19 and 81,550.93

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Solution

The fourth proportional to 250,030.85, 375,008.19 and 81,550.93 is: 122,313.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,030.85 : 375,008.19 = 81,550.93 : x
  2. Step 2: Convert to fraction form
    250,030.85/375,008.19 = 81,550.93/x
  3. Step 3: Cross multiply
    250,030.85x = 375,008.19 × 81,550.93
  4. Step 4: Simplify right side
    250,030.85x = 30,582,266,652.12
  5. Step 5: Solve for x
    x = 30,582,266,652.12/250,030.85
  6. Step 6: Final answer
    x = 122,313.97

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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.