Home / 648,138.04-972,207.10-204,906.04

Finding the Fourth Proportional to 648,138.04, 972,207.10 and 204,906.04

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Solution

The fourth proportional to 648,138.04, 972,207.10 and 204,906.04 is: 307,359.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,138.04 : 972,207.10 = 204,906.04 : x
  2. Step 2: Convert to fraction form
    648,138.04/972,207.10 = 204,906.04/x
  3. Step 3: Cross multiply
    648,138.04x = 972,207.10 × 204,906.04
  4. Step 4: Simplify right side
    648,138.04x = 199,211,106,920.88
  5. Step 5: Solve for x
    x = 199,211,106,920.88/648,138.04
  6. Step 6: Final answer
    x = 307,359.07

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Similar ratio
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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.