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Finding the Fourth Proportional to 268,604.80, 403,217.60 and 144,188.80

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Solution

The fourth proportional to 268,604.80, 403,217.60 and 144,188.80 is: 216,449.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,604.80 : 403,217.60 = 144,188.80 : x
  2. Step 2: Convert to fraction form
    268,604.80/403,217.60 = 144,188.80/x
  3. Step 3: Cross multiply
    268,604.80x = 403,217.60 × 144,188.80
  4. Step 4: Simplify right side
    268,604.80x = 58,139,461,882.88
  5. Step 5: Solve for x
    x = 58,139,461,882.88/268,604.80
  6. Step 6: Final answer
    x = 216,449.82

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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.