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Finding the Fourth Proportional to 291,193.98, 436,793.40 and 80,848.32

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Solution

The fourth proportional to 291,193.98, 436,793.40 and 80,848.32 is: 121,273.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,193.98 : 436,793.40 = 80,848.32 : x
  2. Step 2: Convert to fraction form
    291,193.98/436,793.40 = 80,848.32/x
  3. Step 3: Cross multiply
    291,193.98x = 436,793.40 × 80,848.32
  4. Step 4: Simplify right side
    291,193.98x = 35,314,012,577.09
  5. Step 5: Solve for x
    x = 35,314,012,577.09/291,193.98
  6. Step 6: Final answer
    x = 121,273.15

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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.