Home / 214,807.20-321,903.60-149,066.40

Finding the Fourth Proportional to 214,807.20, 321,903.60 and 149,066.40

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Solution

The fourth proportional to 214,807.20, 321,903.60 and 149,066.40 is: 223,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,807.20 : 321,903.60 = 149,066.40 : x
  2. Step 2: Convert to fraction form
    214,807.20/321,903.60 = 149,066.40/x
  3. Step 3: Cross multiply
    214,807.20x = 321,903.60 × 149,066.40
  4. Step 4: Simplify right side
    214,807.20x = 47,985,010,799.04
  5. Step 5: Solve for x
    x = 47,985,010,799.04/214,807.20
  6. Step 6: Final answer
    x = 223,386.42

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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.