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Finding the Fourth Proportional to 352,659, 486,642.44 and 207,470.55

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Solution

The fourth proportional to 352,659, 486,642.44 and 207,470.55 is: 286,293.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,659 : 486,642.44 = 207,470.55 : x
  2. Step 2: Convert to fraction form
    352,659/486,642.44 = 207,470.55/x
  3. Step 3: Cross multiply
    352,659x = 486,642.44 × 207,470.55
  4. Step 4: Simplify right side
    352,659x = 100,963,974,680.14
  5. Step 5: Solve for x
    x = 100,963,974,680.14/352,659
  6. Step 6: Final answer
    x = 286,293.49

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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.