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Finding the Fourth Proportional to 242,555.20, 363,832.80 and 84,799.60

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Solution

The fourth proportional to 242,555.20, 363,832.80 and 84,799.60 is: 127,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,555.20 : 363,832.80 = 84,799.60 : x
  2. Step 2: Convert to fraction form
    242,555.20/363,832.80 = 84,799.60/x
  3. Step 3: Cross multiply
    242,555.20x = 363,832.80 × 84,799.60
  4. Step 4: Simplify right side
    242,555.20x = 30,852,875,906.88
  5. Step 5: Solve for x
    x = 30,852,875,906.88/242,555.20
  6. Step 6: Final answer
    x = 127,199.40

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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.