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Finding the Fourth Proportional to 269,073.10, 403,609.65 and 256,170.70

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Solution

The fourth proportional to 269,073.10, 403,609.65 and 256,170.70 is: 384,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,073.10 : 403,609.65 = 256,170.70 : x
  2. Step 2: Convert to fraction form
    269,073.10/403,609.65 = 256,170.70/x
  3. Step 3: Cross multiply
    269,073.10x = 403,609.65 × 256,170.70
  4. Step 4: Simplify right side
    269,073.10x = 103,392,966,567.26
  5. Step 5: Solve for x
    x = 103,392,966,567.26/269,073.10
  6. Step 6: Final answer
    x = 384,256.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.