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Finding the Fourth Proportional to 170,270.82, 255,439.71 and 70,377.30

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Solution

The fourth proportional to 170,270.82, 255,439.71 and 70,377.30 is: 105,579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,270.82 : 255,439.71 = 70,377.30 : x
  2. Step 2: Convert to fraction form
    170,270.82/255,439.71 = 70,377.30/x
  3. Step 3: Cross multiply
    170,270.82x = 255,439.71 × 70,377.30
  4. Step 4: Simplify right side
    170,270.82x = 17,977,157,102.58
  5. Step 5: Solve for x
    x = 17,977,157,102.58/170,270.82
  6. Step 6: Final answer
    x = 105,579.79

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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.