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Finding the Fourth Proportional to 355,276.96, 490,266.72 and 194,124.40

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Solution

The fourth proportional to 355,276.96, 490,266.72 and 194,124.40 is: 267,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,276.96 : 490,266.72 = 194,124.40 : x
  2. Step 2: Convert to fraction form
    355,276.96/490,266.72 = 194,124.40/x
  3. Step 3: Cross multiply
    355,276.96x = 490,266.72 × 194,124.40
  4. Step 4: Simplify right side
    355,276.96x = 95,172,732,859.97
  5. Step 5: Solve for x
    x = 95,172,732,859.97/355,276.96
  6. Step 6: Final answer
    x = 267,883.21

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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.