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Finding the Fourth Proportional to 372,932, 514,628.16 and 211,765.76

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Solution

The fourth proportional to 372,932, 514,628.16 and 211,765.76 is: 292,226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,932 : 514,628.16 = 211,765.76 : x
  2. Step 2: Convert to fraction form
    372,932/514,628.16 = 211,765.76/x
  3. Step 3: Cross multiply
    372,932x = 514,628.16 × 211,765.76
  4. Step 4: Simplify right side
    372,932x = 108,980,623,419.80
  5. Step 5: Solve for x
    x = 108,980,623,419.80/372,932
  6. Step 6: Final answer
    x = 292,226.53

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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.