Home / 256,755.32-354,331.98-143,577.80

Finding the Fourth Proportional to 256,755.32, 354,331.98 and 143,577.80

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Solution

The fourth proportional to 256,755.32, 354,331.98 and 143,577.80 is: 198,142.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,755.32 : 354,331.98 = 143,577.80 : x
  2. Step 2: Convert to fraction form
    256,755.32/354,331.98 = 143,577.80/x
  3. Step 3: Cross multiply
    256,755.32x = 354,331.98 × 143,577.80
  4. Step 4: Simplify right side
    256,755.32x = 50,874,206,158.04
  5. Step 5: Solve for x
    x = 50,874,206,158.04/256,755.32
  6. Step 6: Final answer
    x = 198,142.75

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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.