Home / 257,327.11-355,111.50-156,725.11

Finding the Fourth Proportional to 257,327.11, 355,111.50 and 156,725.11

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Solution

The fourth proportional to 257,327.11, 355,111.50 and 156,725.11 is: 216,280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,327.11 : 355,111.50 = 156,725.11 : x
  2. Step 2: Convert to fraction form
    257,327.11/355,111.50 = 156,725.11/x
  3. Step 3: Cross multiply
    257,327.11x = 355,111.50 × 156,725.11
  4. Step 4: Simplify right side
    257,327.11x = 55,654,888,899.77
  5. Step 5: Solve for x
    x = 55,654,888,899.77/257,327.11
  6. Step 6: Final answer
    x = 216,280.71

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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.