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Finding the Fourth Proportional to 358,770.29, 495,138 and 267,968.78

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Solution

The fourth proportional to 358,770.29, 495,138 and 267,968.78 is: 369,823.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,770.29 : 495,138 = 267,968.78 : x
  2. Step 2: Convert to fraction form
    358,770.29/495,138 = 267,968.78/x
  3. Step 3: Cross multiply
    358,770.29x = 495,138 × 267,968.78
  4. Step 4: Simplify right side
    358,770.29x = 132,681,525,172.72
  5. Step 5: Solve for x
    x = 132,681,525,172.72/358,770.29
  6. Step 6: Final answer
    x = 369,823.06

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1.5x scale

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.