Home / 445,721.66-668,680.90-165,238.92

Finding the Fourth Proportional to 445,721.66, 668,680.90 and 165,238.92

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Solution

The fourth proportional to 445,721.66, 668,680.90 and 165,238.92 is: 247,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,721.66 : 668,680.90 = 165,238.92 : x
  2. Step 2: Convert to fraction form
    445,721.66/668,680.90 = 165,238.92/x
  3. Step 3: Cross multiply
    445,721.66x = 668,680.90 × 165,238.92
  4. Step 4: Simplify right side
    445,721.66x = 110,492,109,740.63
  5. Step 5: Solve for x
    x = 110,492,109,740.63/445,721.66
  6. Step 6: Final answer
    x = 247,894.86

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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.