Home / 284,040.12-391,983.58-156,723.92

Finding the Fourth Proportional to 284,040.12, 391,983.58 and 156,723.92

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Solution

The fourth proportional to 284,040.12, 391,983.58 and 156,723.92 is: 216,283.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,040.12 : 391,983.58 = 156,723.92 : x
  2. Step 2: Convert to fraction form
    284,040.12/391,983.58 = 156,723.92/x
  3. Step 3: Cross multiply
    284,040.12x = 391,983.58 × 156,723.92
  4. Step 4: Simplify right side
    284,040.12x = 61,433,203,233.23
  5. Step 5: Solve for x
    x = 61,433,203,233.23/284,040.12
  6. Step 6: Final answer
    x = 216,283.54

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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.