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Finding the Fourth Proportional to 313,147.52, 432,140.16 and 169,910.72

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Solution

The fourth proportional to 313,147.52, 432,140.16 and 169,910.72 is: 234,474.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,147.52 : 432,140.16 = 169,910.72 : x
  2. Step 2: Convert to fraction form
    313,147.52/432,140.16 = 169,910.72/x
  3. Step 3: Cross multiply
    313,147.52x = 432,140.16 × 169,910.72
  4. Step 4: Simplify right side
    313,147.52x = 73,425,245,726.52
  5. Step 5: Solve for x
    x = 73,425,245,726.52/313,147.52
  6. Step 6: Final answer
    x = 234,474.94

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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.