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Finding the Fourth Proportional to 355,275.96, 490,265.34 and 194,123.40

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Solution

The fourth proportional to 355,275.96, 490,265.34 and 194,123.40 is: 267,881.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,275.96 : 490,265.34 = 194,123.40 : x
  2. Step 2: Convert to fraction form
    355,275.96/490,265.34 = 194,123.40/x
  3. Step 3: Cross multiply
    355,275.96x = 490,265.34 × 194,123.40
  4. Step 4: Simplify right side
    355,275.96x = 95,171,974,702.96
  5. Step 5: Solve for x
    x = 95,171,974,702.96/355,275.96
  6. Step 6: Final answer
    x = 267,881.83

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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.