Home / 256,221.12-382,649.52-218,377.92

Finding the Fourth Proportional to 256,221.12, 382,649.52 and 218,377.92

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Solution

The fourth proportional to 256,221.12, 382,649.52 and 218,377.92 is: 326,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,221.12 : 382,649.52 = 218,377.92 : x
  2. Step 2: Convert to fraction form
    256,221.12/382,649.52 = 218,377.92/x
  3. Step 3: Cross multiply
    256,221.12x = 382,649.52 × 218,377.92
  4. Step 4: Simplify right side
    256,221.12x = 83,562,206,266.60
  5. Step 5: Solve for x
    x = 83,562,206,266.60/256,221.12
  6. Step 6: Final answer
    x = 326,133.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.