Home / 256,834.76-354,432.36-143,657.52

Finding the Fourth Proportional to 256,834.76, 354,432.36 and 143,657.52

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Solution

The fourth proportional to 256,834.76, 354,432.36 and 143,657.52 is: 198,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,834.76 : 354,432.36 = 143,657.52 : x
  2. Step 2: Convert to fraction form
    256,834.76/354,432.36 = 143,657.52/x
  3. Step 3: Cross multiply
    256,834.76x = 354,432.36 × 143,657.52
  4. Step 4: Simplify right side
    256,834.76x = 50,916,873,845.35
  5. Step 5: Solve for x
    x = 50,916,873,845.35/256,834.76
  6. Step 6: Final answer
    x = 198,247.60

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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.