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Finding the Fourth Proportional to 291,796.20, 437,451.30 and 123,445.80

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Solution

The fourth proportional to 291,796.20, 437,451.30 and 123,445.80 is: 185,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,796.20 : 437,451.30 = 123,445.80 : x
  2. Step 2: Convert to fraction form
    291,796.20/437,451.30 = 123,445.80/x
  3. Step 3: Cross multiply
    291,796.20x = 437,451.30 × 123,445.80
  4. Step 4: Simplify right side
    291,796.20x = 54,001,525,689.54
  5. Step 5: Solve for x
    x = 54,001,525,689.54/291,796.20
  6. Step 6: Final answer
    x = 185,065.90

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1.5x scale

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.