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Finding the Fourth Proportional to 147,380.40, 221,070.60 and 53,922.60

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Solution

The fourth proportional to 147,380.40, 221,070.60 and 53,922.60 is: 80,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,380.40 : 221,070.60 = 53,922.60 : x
  2. Step 2: Convert to fraction form
    147,380.40/221,070.60 = 53,922.60/x
  3. Step 3: Cross multiply
    147,380.40x = 221,070.60 × 53,922.60
  4. Step 4: Simplify right side
    147,380.40x = 11,920,701,535.56
  5. Step 5: Solve for x
    x = 11,920,701,535.56/147,380.40
  6. Step 6: Final answer
    x = 80,883.90

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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.