Home / 313,468.18-432,718.50-211,631.57

Finding the Fourth Proportional to 313,468.18, 432,718.50 and 211,631.57

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Solution

The fourth proportional to 313,468.18, 432,718.50 and 211,631.57 is: 292,140.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,468.18 : 432,718.50 = 211,631.57 : x
  2. Step 2: Convert to fraction form
    313,468.18/432,718.50 = 211,631.57/x
  3. Step 3: Cross multiply
    313,468.18x = 432,718.50 × 211,631.57
  4. Step 4: Simplify right side
    313,468.18x = 91,576,897,398.46
  5. Step 5: Solve for x
    x = 91,576,897,398.46/313,468.18
  6. Step 6: Final answer
    x = 292,140.97

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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.