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Finding the Fourth Proportional to 355,294.18, 490,307.25 and 194,149.23

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Solution

The fourth proportional to 355,294.18, 490,307.25 and 194,149.23 is: 267,926.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,294.18 : 490,307.25 = 194,149.23 : x
  2. Step 2: Convert to fraction form
    355,294.18/490,307.25 = 194,149.23/x
  3. Step 3: Cross multiply
    355,294.18x = 490,307.25 × 194,149.23
  4. Step 4: Simplify right side
    355,294.18x = 95,192,775,050.92
  5. Step 5: Solve for x
    x = 95,192,775,050.92/355,294.18
  6. Step 6: Final answer
    x = 267,926.64

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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.