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Finding the Fourth Proportional to 169,276.80, 254,012.40 and 64,171.20

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Solution

The fourth proportional to 169,276.80, 254,012.40 and 64,171.20 is: 96,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,276.80 : 254,012.40 = 64,171.20 : x
  2. Step 2: Convert to fraction form
    169,276.80/254,012.40 = 64,171.20/x
  3. Step 3: Cross multiply
    169,276.80x = 254,012.40 × 64,171.20
  4. Step 4: Simplify right side
    169,276.80x = 16,300,280,522.88
  5. Step 5: Solve for x
    x = 16,300,280,522.88/169,276.80
  6. Step 6: Final answer
    x = 96,293.65

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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.