Home / 279,556.25-385,803.82-210,522.13

Finding the Fourth Proportional to 279,556.25, 385,803.82 and 210,522.13

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Solution

The fourth proportional to 279,556.25, 385,803.82 and 210,522.13 is: 290,532.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,556.25 : 385,803.82 = 210,522.13 : x
  2. Step 2: Convert to fraction form
    279,556.25/385,803.82 = 210,522.13/x
  3. Step 3: Cross multiply
    279,556.25x = 385,803.82 × 210,522.13
  4. Step 4: Simplify right side
    279,556.25x = 81,220,241,948.54
  5. Step 5: Solve for x
    x = 81,220,241,948.54/279,556.25
  6. Step 6: Final answer
    x = 290,532.74

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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.