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Finding the Fourth Proportional to 216,000.90, 323,958.15 and 103,680.90

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Solution

The fourth proportional to 216,000.90, 323,958.15 and 103,680.90 is: 155,500.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,000.90 : 323,958.15 = 103,680.90 : x
  2. Step 2: Convert to fraction form
    216,000.90/323,958.15 = 103,680.90/x
  3. Step 3: Cross multiply
    216,000.90x = 323,958.15 × 103,680.90
  4. Step 4: Simplify right side
    216,000.90x = 33,588,272,554.34
  5. Step 5: Solve for x
    x = 33,588,272,554.34/216,000.90
  6. Step 6: Final answer
    x = 155,500.61

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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.