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Finding the Fourth Proportional to 296,816.80, 445,225.20 and 75,200.80

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Solution

The fourth proportional to 296,816.80, 445,225.20 and 75,200.80 is: 112,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,816.80 : 445,225.20 = 75,200.80 : x
  2. Step 2: Convert to fraction form
    296,816.80/445,225.20 = 75,200.80/x
  3. Step 3: Cross multiply
    296,816.80x = 445,225.20 × 75,200.80
  4. Step 4: Simplify right side
    296,816.80x = 33,481,291,220.16
  5. Step 5: Solve for x
    x = 33,481,291,220.16/296,816.80
  6. Step 6: Final answer
    x = 112,801.20

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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.