Home / 300,988.06-415,371.42-170,155.30

Finding the Fourth Proportional to 300,988.06, 415,371.42 and 170,155.30

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Solution

The fourth proportional to 300,988.06, 415,371.42 and 170,155.30 is: 234,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,988.06 : 415,371.42 = 170,155.30 : x
  2. Step 2: Convert to fraction form
    300,988.06/415,371.42 = 170,155.30/x
  3. Step 3: Cross multiply
    300,988.06x = 415,371.42 × 170,155.30
  4. Step 4: Simplify right side
    300,988.06x = 70,677,648,581.53
  5. Step 5: Solve for x
    x = 70,677,648,581.53/300,988.06
  6. Step 6: Final answer
    x = 234,818.78

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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.