Home / 242,520.30-363,780.45-228,742.20

Finding the Fourth Proportional to 242,520.30, 363,780.45 and 228,742.20

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Solution

The fourth proportional to 242,520.30, 363,780.45 and 228,742.20 is: 343,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,520.30 : 363,780.45 = 228,742.20 : x
  2. Step 2: Convert to fraction form
    242,520.30/363,780.45 = 228,742.20/x
  3. Step 3: Cross multiply
    242,520.30x = 363,780.45 × 228,742.20
  4. Step 4: Simplify right side
    242,520.30x = 83,211,940,449.99
  5. Step 5: Solve for x
    x = 83,211,940,449.99/242,520.30
  6. Step 6: Final answer
    x = 343,113.30

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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.