Home / 245,531.10-338,873.40-154,936.62

Finding the Fourth Proportional to 245,531.10, 338,873.40 and 154,936.62

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Solution

The fourth proportional to 245,531.10, 338,873.40 and 154,936.62 is: 213,838.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,531.10 : 338,873.40 = 154,936.62 : x
  2. Step 2: Convert to fraction form
    245,531.10/338,873.40 = 154,936.62/x
  3. Step 3: Cross multiply
    245,531.10x = 338,873.40 × 154,936.62
  4. Step 4: Simplify right side
    245,531.10x = 52,503,899,203.91
  5. Step 5: Solve for x
    x = 52,503,899,203.91/245,531.10
  6. Step 6: Final answer
    x = 213,838.08

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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.