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Finding the Fourth Proportional to 219,116.90, 327,984.15 and 156,908.90

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Solution

The fourth proportional to 219,116.90, 327,984.15 and 156,908.90 is: 234,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,116.90 : 327,984.15 = 156,908.90 : x
  2. Step 2: Convert to fraction form
    219,116.90/327,984.15 = 156,908.90/x
  3. Step 3: Cross multiply
    219,116.90x = 327,984.15 × 156,908.90
  4. Step 4: Simplify right side
    219,116.90x = 51,463,632,193.94
  5. Step 5: Solve for x
    x = 51,463,632,193.94/219,116.90
  6. Step 6: Final answer
    x = 234,868.38

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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.