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Finding the Fourth Proportional to 477,297.30, 715,945.66 and 140,340.75

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Solution

The fourth proportional to 477,297.30, 715,945.66 and 140,340.75 is: 210,511.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,297.30 : 715,945.66 = 140,340.75 : x
  2. Step 2: Convert to fraction form
    477,297.30/715,945.66 = 140,340.75/x
  3. Step 3: Cross multiply
    477,297.30x = 715,945.66 × 140,340.75
  4. Step 4: Simplify right side
    477,297.30x = 100,476,350,883.65
  5. Step 5: Solve for x
    x = 100,476,350,883.65/477,297.30
  6. Step 6: Final answer
    x = 210,511.04

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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.