Home / 379,625.11-569,556.12-113,396.13

Finding the Fourth Proportional to 379,625.11, 569,556.12 and 113,396.13

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Solution

The fourth proportional to 379,625.11, 569,556.12 and 113,396.13 is: 170,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,625.11 : 569,556.12 = 113,396.13 : x
  2. Step 2: Convert to fraction form
    379,625.11/569,556.12 = 113,396.13/x
  3. Step 3: Cross multiply
    379,625.11x = 569,556.12 × 113,396.13
  4. Step 4: Simplify right side
    379,625.11x = 64,585,459,825.82
  5. Step 5: Solve for x
    x = 64,585,459,825.82/379,625.11
  6. Step 6: Final answer
    x = 170,129.58

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1.5x scale

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.