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Finding the Fourth Proportional to 372,553.32, 514,109.31 and 211,398.75

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Solution

The fourth proportional to 372,553.32, 514,109.31 and 211,398.75 is: 291,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,553.32 : 514,109.31 = 211,398.75 : x
  2. Step 2: Convert to fraction form
    372,553.32/514,109.31 = 211,398.75/x
  3. Step 3: Cross multiply
    372,553.32x = 514,109.31 × 211,398.75
  4. Step 4: Simplify right side
    372,553.32x = 108,682,065,497.36
  5. Step 5: Solve for x
    x = 108,682,065,497.36/372,553.32
  6. Step 6: Final answer
    x = 291,722.18

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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.