Home / 224,128.40-309,288.16-122,151.66

Finding the Fourth Proportional to 224,128.40, 309,288.16 and 122,151.66

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Solution

The fourth proportional to 224,128.40, 309,288.16 and 122,151.66 is: 168,564.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,128.40 : 309,288.16 = 122,151.66 : x
  2. Step 2: Convert to fraction form
    224,128.40/309,288.16 = 122,151.66/x
  3. Step 3: Cross multiply
    224,128.40x = 309,288.16 × 122,151.66
  4. Step 4: Simplify right side
    224,128.40x = 37,780,062,162.35
  5. Step 5: Solve for x
    x = 37,780,062,162.35/224,128.40
  6. Step 6: Final answer
    x = 168,564.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.