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Finding the Fourth Proportional to 225,246.30, 310,839.93 and 140,363.70

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Solution

The fourth proportional to 225,246.30, 310,839.93 and 140,363.70 is: 193,701.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,246.30 : 310,839.93 = 140,363.70 : x
  2. Step 2: Convert to fraction form
    225,246.30/310,839.93 = 140,363.70/x
  3. Step 3: Cross multiply
    225,246.30x = 310,839.93 × 140,363.70
  4. Step 4: Simplify right side
    225,246.30x = 43,630,642,682.54
  5. Step 5: Solve for x
    x = 43,630,642,682.54/225,246.30
  6. Step 6: Final answer
    x = 193,701.93

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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.