Home / 204,476.40-307,042.65-138,210.30

Finding the Fourth Proportional to 204,476.40, 307,042.65 and 138,210.30

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Solution

The fourth proportional to 204,476.40, 307,042.65 and 138,210.30 is: 207,537.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,476.40 : 307,042.65 = 138,210.30 : x
  2. Step 2: Convert to fraction form
    204,476.40/307,042.65 = 138,210.30/x
  3. Step 3: Cross multiply
    204,476.40x = 307,042.65 × 138,210.30
  4. Step 4: Simplify right side
    204,476.40x = 42,436,456,769.30
  5. Step 5: Solve for x
    x = 42,436,456,769.30/204,476.40
  6. Step 6: Final answer
    x = 207,537.19

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1.5x scale

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.