Home / 214,631.40-321,947.10-74,404.20

Finding the Fourth Proportional to 214,631.40, 321,947.10 and 74,404.20

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Solution

The fourth proportional to 214,631.40, 321,947.10 and 74,404.20 is: 111,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,631.40 : 321,947.10 = 74,404.20 : x
  2. Step 2: Convert to fraction form
    214,631.40/321,947.10 = 74,404.20/x
  3. Step 3: Cross multiply
    214,631.40x = 321,947.10 × 74,404.20
  4. Step 4: Simplify right side
    214,631.40x = 23,954,216,417.82
  5. Step 5: Solve for x
    x = 23,954,216,417.82/214,631.40
  6. Step 6: Final answer
    x = 111,606.30

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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.