Home / 261,922.56-361,439.28-147,205.68

Finding the Fourth Proportional to 261,922.56, 361,439.28 and 147,205.68

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Solution

The fourth proportional to 261,922.56, 361,439.28 and 147,205.68 is: 203,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,922.56 : 361,439.28 = 147,205.68 : x
  2. Step 2: Convert to fraction form
    261,922.56/361,439.28 = 147,205.68/x
  3. Step 3: Cross multiply
    261,922.56x = 361,439.28 × 147,205.68
  4. Step 4: Simplify right side
    261,922.56x = 53,205,914,991.11
  5. Step 5: Solve for x
    x = 53,205,914,991.11/261,922.56
  6. Step 6: Final answer
    x = 203,136.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.