Home / 214,644.40-321,966.60-74,417.20

Finding the Fourth Proportional to 214,644.40, 321,966.60 and 74,417.20

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Solution

The fourth proportional to 214,644.40, 321,966.60 and 74,417.20 is: 111,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,644.40 : 321,966.60 = 74,417.20 : x
  2. Step 2: Convert to fraction form
    214,644.40/321,966.60 = 74,417.20/x
  3. Step 3: Cross multiply
    214,644.40x = 321,966.60 × 74,417.20
  4. Step 4: Simplify right side
    214,644.40x = 23,959,852,865.52
  5. Step 5: Solve for x
    x = 23,959,852,865.52/214,644.40
  6. Step 6: Final answer
    x = 111,625.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.