Home / 219,800.38-329,741.53-99,865.74

Finding the Fourth Proportional to 219,800.38, 329,741.53 and 99,865.74

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Solution

The fourth proportional to 219,800.38, 329,741.53 and 99,865.74 is: 149,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,800.38 : 329,741.53 = 99,865.74 : x
  2. Step 2: Convert to fraction form
    219,800.38/329,741.53 = 99,865.74/x
  3. Step 3: Cross multiply
    219,800.38x = 329,741.53 × 99,865.74
  4. Step 4: Simplify right side
    219,800.38x = 32,929,881,902.18
  5. Step 5: Solve for x
    x = 32,929,881,902.18/219,800.38
  6. Step 6: Final answer
    x = 149,817.22

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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.