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Finding the Fourth Proportional to 359,079.39, 494,858.30 and 268,275.15

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Solution

The fourth proportional to 359,079.39, 494,858.30 and 268,275.15 is: 369,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,079.39 : 494,858.30 = 268,275.15 : x
  2. Step 2: Convert to fraction form
    359,079.39/494,858.30 = 268,275.15/x
  3. Step 3: Cross multiply
    359,079.39x = 494,858.30 × 268,275.15
  4. Step 4: Simplify right side
    359,079.39x = 132,758,183,319.87
  5. Step 5: Solve for x
    x = 132,758,183,319.87/359,079.39
  6. Step 6: Final answer
    x = 369,718.19

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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.