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Finding the Fourth Proportional to 375,020.20, 517,530.90 and 205,255.72

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Solution

The fourth proportional to 375,020.20, 517,530.90 and 205,255.72 is: 283,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,020.20 : 517,530.90 = 205,255.72 : x
  2. Step 2: Convert to fraction form
    375,020.20/517,530.90 = 205,255.72/x
  3. Step 3: Cross multiply
    375,020.20x = 517,530.90 × 205,255.72
  4. Step 4: Simplify right side
    375,020.20x = 106,226,177,501.75
  5. Step 5: Solve for x
    x = 106,226,177,501.75/375,020.20
  6. Step 6: Final answer
    x = 283,254.55

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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.