Home / 345,626.43-518,252.04-155,864.77

Finding the Fourth Proportional to 345,626.43, 518,252.04 and 155,864.77

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Solution

The fourth proportional to 345,626.43, 518,252.04 and 155,864.77 is: 233,712.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,626.43 : 518,252.04 = 155,864.77 : x
  2. Step 2: Convert to fraction form
    345,626.43/518,252.04 = 155,864.77/x
  3. Step 3: Cross multiply
    345,626.43x = 518,252.04 × 155,864.77
  4. Step 4: Simplify right side
    345,626.43x = 80,777,234,984.97
  5. Step 5: Solve for x
    x = 80,777,234,984.97/345,626.43
  6. Step 6: Final answer
    x = 233,712.55

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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.