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Finding the Fourth Proportional to 375,626.28, 518,366.23 and 203,544.31

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Solution

The fourth proportional to 375,626.28, 518,366.23 and 203,544.31 is: 280,892.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,626.28 : 518,366.23 = 203,544.31 : x
  2. Step 2: Convert to fraction form
    375,626.28/518,366.23 = 203,544.31/x
  3. Step 3: Cross multiply
    375,626.28x = 518,366.23 × 203,544.31
  4. Step 4: Simplify right side
    375,626.28x = 105,510,496,612.65
  5. Step 5: Solve for x
    x = 105,510,496,612.65/375,626.28
  6. Step 6: Final answer
    x = 280,892.22

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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.