Home / 256,623.90-354,126.78-141,895.86

Finding the Fourth Proportional to 256,623.90, 354,126.78 and 141,895.86

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Solution

The fourth proportional to 256,623.90, 354,126.78 and 141,895.86 is: 195,808.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,623.90 : 354,126.78 = 141,895.86 : x
  2. Step 2: Convert to fraction form
    256,623.90/354,126.78 = 141,895.86/x
  3. Step 3: Cross multiply
    256,623.90x = 354,126.78 × 141,895.86
  4. Step 4: Simplify right side
    256,623.90x = 50,249,123,997.13
  5. Step 5: Solve for x
    x = 50,249,123,997.13/256,623.90
  6. Step 6: Final answer
    x = 195,808.43

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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.