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Finding the Fourth Proportional to 425,170.10, 636,257.24 and 265,321.24

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Solution

The fourth proportional to 425,170.10, 636,257.24 and 265,321.24 is: 397,047.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,170.10 : 636,257.24 = 265,321.24 : x
  2. Step 2: Convert to fraction form
    425,170.10/636,257.24 = 265,321.24/x
  3. Step 3: Cross multiply
    425,170.10x = 636,257.24 × 265,321.24
  4. Step 4: Simplify right side
    425,170.10x = 168,812,560,139.81
  5. Step 5: Solve for x
    x = 168,812,560,139.81/425,170.10
  6. Step 6: Final answer
    x = 397,047.12

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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.