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Finding the Fourth Proportional to 245,842.80, 368,764.20 and 135,250.80

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Solution

The fourth proportional to 245,842.80, 368,764.20 and 135,250.80 is: 202,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,842.80 : 368,764.20 = 135,250.80 : x
  2. Step 2: Convert to fraction form
    245,842.80/368,764.20 = 135,250.80/x
  3. Step 3: Cross multiply
    245,842.80x = 368,764.20 × 135,250.80
  4. Step 4: Simplify right side
    245,842.80x = 49,875,653,061.36
  5. Step 5: Solve for x
    x = 49,875,653,061.36/245,842.80
  6. Step 6: Final answer
    x = 202,876.20

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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.