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Finding the Fourth Proportional to 355,937.79, 491,194.08 and 194,792.88

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Solution

The fourth proportional to 355,937.79, 491,194.08 and 194,792.88 is: 268,814.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,937.79 : 491,194.08 = 194,792.88 : x
  2. Step 2: Convert to fraction form
    355,937.79/491,194.08 = 194,792.88/x
  3. Step 3: Cross multiply
    355,937.79x = 491,194.08 × 194,792.88
  4. Step 4: Simplify right side
    355,937.79x = 95,681,109,482.15
  5. Step 5: Solve for x
    x = 95,681,109,482.15/355,937.79
  6. Step 6: Final answer
    x = 268,814.14

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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.