Home / 209,519.07-288,935.31-140,763.88

Finding the Fourth Proportional to 209,519.07, 288,935.31 and 140,763.88

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Solution

The fourth proportional to 209,519.07, 288,935.31 and 140,763.88 is: 194,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,519.07 : 288,935.31 = 140,763.88 : x
  2. Step 2: Convert to fraction form
    209,519.07/288,935.31 = 140,763.88/x
  3. Step 3: Cross multiply
    209,519.07x = 288,935.31 × 140,763.88
  4. Step 4: Simplify right side
    209,519.07x = 40,671,655,304.60
  5. Step 5: Solve for x
    x = 40,671,655,304.60/209,519.07
  6. Step 6: Final answer
    x = 194,119.11

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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.