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Finding the Fourth Proportional to 269,457.20, 403,748.40 and 169,438.40

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Solution

The fourth proportional to 269,457.20, 403,748.40 and 169,438.40 is: 253,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,457.20 : 403,748.40 = 169,438.40 : x
  2. Step 2: Convert to fraction form
    269,457.20/403,748.40 = 169,438.40/x
  3. Step 3: Cross multiply
    269,457.20x = 403,748.40 × 169,438.40
  4. Step 4: Simplify right side
    269,457.20x = 68,410,482,898.56
  5. Step 5: Solve for x
    x = 68,410,482,898.56/269,457.20
  6. Step 6: Final answer
    x = 253,882.56

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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.