Home / 284,025.78-391,956.84-156,705.12

Finding the Fourth Proportional to 284,025.78, 391,956.84 and 156,705.12

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Solution

The fourth proportional to 284,025.78, 391,956.84 and 156,705.12 is: 216,253.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,025.78 : 391,956.84 = 156,705.12 : x
  2. Step 2: Convert to fraction form
    284,025.78/391,956.84 = 156,705.12/x
  3. Step 3: Cross multiply
    284,025.78x = 391,956.84 × 156,705.12
  4. Step 4: Simplify right side
    284,025.78x = 61,421,643,647.02
  5. Step 5: Solve for x
    x = 61,421,643,647.02/284,025.78
  6. Step 6: Final answer
    x = 216,253.76

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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.