Home / 259,221.63-388,985.53-109,452.22

Finding the Fourth Proportional to 259,221.63, 388,985.53 and 109,452.22

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Solution

The fourth proportional to 259,221.63, 388,985.53 and 109,452.22 is: 164,242.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,221.63 : 388,985.53 = 109,452.22 : x
  2. Step 2: Convert to fraction form
    259,221.63/388,985.53 = 109,452.22/x
  3. Step 3: Cross multiply
    259,221.63x = 388,985.53 × 109,452.22
  4. Step 4: Simplify right side
    259,221.63x = 42,575,329,806.38
  5. Step 5: Solve for x
    x = 42,575,329,806.38/259,221.63
  6. Step 6: Final answer
    x = 164,242.97

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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.