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Finding the Fourth Proportional to 220,124.70, 330,187.05 and 207,002.70

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Solution

The fourth proportional to 220,124.70, 330,187.05 and 207,002.70 is: 310,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,124.70 : 330,187.05 = 207,002.70 : x
  2. Step 2: Convert to fraction form
    220,124.70/330,187.05 = 207,002.70/x
  3. Step 3: Cross multiply
    220,124.70x = 330,187.05 × 207,002.70
  4. Step 4: Simplify right side
    220,124.70x = 68,349,610,855.04
  5. Step 5: Solve for x
    x = 68,349,610,855.04/220,124.70
  6. Step 6: Final answer
    x = 310,504.05

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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.