Home / 648,121.70-972,182.55-227,440.10

Finding the Fourth Proportional to 648,121.70, 972,182.55 and 227,440.10

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Solution

The fourth proportional to 648,121.70, 972,182.55 and 227,440.10 is: 341,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,121.70 : 972,182.55 = 227,440.10 : x
  2. Step 2: Convert to fraction form
    648,121.70/972,182.55 = 227,440.10/x
  3. Step 3: Cross multiply
    648,121.70x = 972,182.55 × 227,440.10
  4. Step 4: Simplify right side
    648,121.70x = 221,113,296,390.26
  5. Step 5: Solve for x
    x = 221,113,296,390.26/648,121.70
  6. Step 6: Final answer
    x = 341,160.15

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Double scale
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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.