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Finding the Fourth Proportional to 291,750.40, 437,625.60 and 104,780.80

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Solution

The fourth proportional to 291,750.40, 437,625.60 and 104,780.80 is: 157,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,750.40 : 437,625.60 = 104,780.80 : x
  2. Step 2: Convert to fraction form
    291,750.40/437,625.60 = 104,780.80/x
  3. Step 3: Cross multiply
    291,750.40x = 437,625.60 × 104,780.80
  4. Step 4: Simplify right side
    291,750.40x = 45,854,760,468.48
  5. Step 5: Solve for x
    x = 45,854,760,468.48/291,750.40
  6. Step 6: Final answer
    x = 157,171.20

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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.