Home / 256,528.11-354,006.18-143,350.86

Finding the Fourth Proportional to 256,528.11, 354,006.18 and 143,350.86

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Solution

The fourth proportional to 256,528.11, 354,006.18 and 143,350.86 is: 197,822.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,528.11 : 354,006.18 = 143,350.86 : x
  2. Step 2: Convert to fraction form
    256,528.11/354,006.18 = 143,350.86/x
  3. Step 3: Cross multiply
    256,528.11x = 354,006.18 × 143,350.86
  4. Step 4: Simplify right side
    256,528.11x = 50,747,090,348.31
  5. Step 5: Solve for x
    x = 50,747,090,348.31/256,528.11
  6. Step 6: Final answer
    x = 197,822.73

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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.