Home / 805,159.50-1,207,711.40-206,125.80

Finding the Fourth Proportional to 805,159.50, 1,207,711.40 and 206,125.80

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Solution

The fourth proportional to 805,159.50, 1,207,711.40 and 206,125.80 is: 309,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,159.50 : 1,207,711.40 = 206,125.80 : x
  2. Step 2: Convert to fraction form
    805,159.50/1,207,711.40 = 206,125.80/x
  3. Step 3: Cross multiply
    805,159.50x = 1,207,711.40 × 206,125.80
  4. Step 4: Simplify right side
    805,159.50x = 248,940,478,494.12
  5. Step 5: Solve for x
    x = 248,940,478,494.12/805,159.50
  6. Step 6: Final answer
    x = 309,181.57

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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.