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Finding the Fourth Proportional to 268,302.80, 402,454.20 and 161,577.20

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Solution

The fourth proportional to 268,302.80, 402,454.20 and 161,577.20 is: 242,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,302.80 : 402,454.20 = 161,577.20 : x
  2. Step 2: Convert to fraction form
    268,302.80/402,454.20 = 161,577.20/x
  3. Step 3: Cross multiply
    268,302.80x = 402,454.20 × 161,577.20
  4. Step 4: Simplify right side
    268,302.80x = 65,027,422,764.24
  5. Step 5: Solve for x
    x = 65,027,422,764.24/268,302.80
  6. Step 6: Final answer
    x = 242,365.80

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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.