Home / 331,811.87-497,402.48-211,531.19

Finding the Fourth Proportional to 331,811.87, 497,402.48 and 211,531.19

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Solution

The fourth proportional to 331,811.87, 497,402.48 and 211,531.19 is: 317,095.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,811.87 : 497,402.48 = 211,531.19 : x
  2. Step 2: Convert to fraction form
    331,811.87/497,402.48 = 211,531.19/x
  3. Step 3: Cross multiply
    331,811.87x = 497,402.48 × 211,531.19
  4. Step 4: Simplify right side
    331,811.87x = 105,216,136,545.17
  5. Step 5: Solve for x
    x = 105,216,136,545.17/331,811.87
  6. Step 6: Final answer
    x = 317,095.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.