Home / 372,281.10-513,757.78-211,105.68

Finding the Fourth Proportional to 372,281.10, 513,757.78 and 211,105.68

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Solution

The fourth proportional to 372,281.10, 513,757.78 and 211,105.68 is: 291,331.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,281.10 : 513,757.78 = 211,105.68 : x
  2. Step 2: Convert to fraction form
    372,281.10/513,757.78 = 211,105.68/x
  3. Step 3: Cross multiply
    372,281.10x = 513,757.78 × 211,105.68
  4. Step 4: Simplify right side
    372,281.10x = 108,457,185,502.19
  5. Step 5: Solve for x
    x = 108,457,185,502.19/372,281.10
  6. Step 6: Final answer
    x = 291,331.43

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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.