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Finding the Fourth Proportional to 345,600.91, 518,323.59 and 123,984.91

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Solution

The fourth proportional to 345,600.91, 518,323.59 and 123,984.91 is: 185,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,600.91 : 518,323.59 = 123,984.91 : x
  2. Step 2: Convert to fraction form
    345,600.91/518,323.59 = 123,984.91/x
  3. Step 3: Cross multiply
    345,600.91x = 518,323.59 × 123,984.91
  4. Step 4: Simplify right side
    345,600.91x = 64,264,304,304.93
  5. Step 5: Solve for x
    x = 64,264,304,304.93/345,600.91
  6. Step 6: Final answer
    x = 185,949.46

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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.