Home / 261,037.40-391,556.10-136,362.20

Finding the Fourth Proportional to 261,037.40, 391,556.10 and 136,362.20

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Solution

The fourth proportional to 261,037.40, 391,556.10 and 136,362.20 is: 204,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,037.40 : 391,556.10 = 136,362.20 : x
  2. Step 2: Convert to fraction form
    261,037.40/391,556.10 = 136,362.20/x
  3. Step 3: Cross multiply
    261,037.40x = 391,556.10 × 136,362.20
  4. Step 4: Simplify right side
    261,037.40x = 53,393,451,219.42
  5. Step 5: Solve for x
    x = 53,393,451,219.42/261,037.40
  6. Step 6: Final answer
    x = 204,543.30

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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.