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Finding the Fourth Proportional to 291,799.20, 437,698.80 and 125,587.20

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Solution

The fourth proportional to 291,799.20, 437,698.80 and 125,587.20 is: 188,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,799.20 : 437,698.80 = 125,587.20 : x
  2. Step 2: Convert to fraction form
    291,799.20/437,698.80 = 125,587.20/x
  3. Step 3: Cross multiply
    291,799.20x = 437,698.80 × 125,587.20
  4. Step 4: Simplify right side
    291,799.20x = 54,969,366,735.36
  5. Step 5: Solve for x
    x = 54,969,366,735.36/291,799.20
  6. Step 6: Final answer
    x = 188,380.80

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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.