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Finding the Fourth Proportional to 169,310.40, 254,551.20 and 158,347.20

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Solution

The fourth proportional to 169,310.40, 254,551.20 and 158,347.20 is: 238,068.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,310.40 : 254,551.20 = 158,347.20 : x
  2. Step 2: Convert to fraction form
    169,310.40/254,551.20 = 158,347.20/x
  3. Step 3: Cross multiply
    169,310.40x = 254,551.20 × 158,347.20
  4. Step 4: Simplify right side
    169,310.40x = 40,307,469,776.64
  5. Step 5: Solve for x
    x = 40,307,469,776.64/169,310.40
  6. Step 6: Final answer
    x = 238,068.48

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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.