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Finding the Fourth Proportional to 219,322.40, 329,329.20 and 126,010.40

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Solution

The fourth proportional to 219,322.40, 329,329.20 and 126,010.40 is: 189,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,322.40 : 329,329.20 = 126,010.40 : x
  2. Step 2: Convert to fraction form
    219,322.40/329,329.20 = 126,010.40/x
  3. Step 3: Cross multiply
    219,322.40x = 329,329.20 × 126,010.40
  4. Step 4: Simplify right side
    219,322.40x = 41,498,904,223.68
  5. Step 5: Solve for x
    x = 41,498,904,223.68/219,322.40
  6. Step 6: Final answer
    x = 189,214.16

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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.