Home / 209,319.97-288,943.72-148,384.65

Finding the Fourth Proportional to 209,319.97, 288,943.72 and 148,384.65

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Solution

The fourth proportional to 209,319.97, 288,943.72 and 148,384.65 is: 204,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,319.97 : 288,943.72 = 148,384.65 : x
  2. Step 2: Convert to fraction form
    209,319.97/288,943.72 = 148,384.65/x
  3. Step 3: Cross multiply
    209,319.97x = 288,943.72 × 148,384.65
  4. Step 4: Simplify right side
    209,319.97x = 42,874,812,761.90
  5. Step 5: Solve for x
    x = 42,874,812,761.90/209,319.97
  6. Step 6: Final answer
    x = 204,829.06

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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.