Home / 256,711.48-354,260.69-143,534.23

Finding the Fourth Proportional to 256,711.48, 354,260.69 and 143,534.23

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Solution

The fourth proportional to 256,711.48, 354,260.69 and 143,534.23 is: 198,076.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,711.48 : 354,260.69 = 143,534.23 : x
  2. Step 2: Convert to fraction form
    256,711.48/354,260.69 = 143,534.23/x
  3. Step 3: Cross multiply
    256,711.48x = 354,260.69 × 143,534.23
  4. Step 4: Simplify right side
    256,711.48x = 50,848,535,358.42
  5. Step 5: Solve for x
    x = 50,848,535,358.42/256,711.48
  6. Step 6: Final answer
    x = 198,076.59

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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.