Home / 219,614.22-329,421.33-53,400.78

Finding the Fourth Proportional to 219,614.22, 329,421.33 and 53,400.78

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Solution

The fourth proportional to 219,614.22, 329,421.33 and 53,400.78 is: 80,101.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,614.22 : 329,421.33 = 53,400.78 : x
  2. Step 2: Convert to fraction form
    219,614.22/329,421.33 = 53,400.78/x
  3. Step 3: Cross multiply
    219,614.22x = 329,421.33 × 53,400.78
  4. Step 4: Simplify right side
    219,614.22x = 17,591,355,970.64
  5. Step 5: Solve for x
    x = 17,591,355,970.64/219,614.22
  6. Step 6: Final answer
    x = 80,101.17

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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.