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Finding the Fourth Proportional to 269,494.70, 404,242.05 and 210,008.30

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Solution

The fourth proportional to 269,494.70, 404,242.05 and 210,008.30 is: 315,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,494.70 : 404,242.05 = 210,008.30 : x
  2. Step 2: Convert to fraction form
    269,494.70/404,242.05 = 210,008.30/x
  3. Step 3: Cross multiply
    269,494.70x = 404,242.05 × 210,008.30
  4. Step 4: Simplify right side
    269,494.70x = 84,894,185,709.02
  5. Step 5: Solve for x
    x = 84,894,185,709.02/269,494.70
  6. Step 6: Final answer
    x = 315,012.45

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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.