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Finding the Fourth Proportional to 220,127.40, 330,191.10 and 207,005.40

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Solution

The fourth proportional to 220,127.40, 330,191.10 and 207,005.40 is: 310,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,127.40 : 330,191.10 = 207,005.40 : x
  2. Step 2: Convert to fraction form
    220,127.40/330,191.10 = 207,005.40/x
  3. Step 3: Cross multiply
    220,127.40x = 330,191.10 × 207,005.40
  4. Step 4: Simplify right side
    220,127.40x = 68,351,340,731.94
  5. Step 5: Solve for x
    x = 68,351,340,731.94/220,127.40
  6. Step 6: Final answer
    x = 310,508.10

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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.