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Finding the Fourth Proportional to 229,520.80, 344,281.20 and 103,112.20

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Solution

The fourth proportional to 229,520.80, 344,281.20 and 103,112.20 is: 154,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,520.80 : 344,281.20 = 103,112.20 : x
  2. Step 2: Convert to fraction form
    229,520.80/344,281.20 = 103,112.20/x
  3. Step 3: Cross multiply
    229,520.80x = 344,281.20 × 103,112.20
  4. Step 4: Simplify right side
    229,520.80x = 35,499,591,950.64
  5. Step 5: Solve for x
    x = 35,499,591,950.64/229,520.80
  6. Step 6: Final answer
    x = 154,668.30

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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.