Home / 380,878.24-571,121.52-223,417.12

Finding the Fourth Proportional to 380,878.24, 571,121.52 and 223,417.12

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Solution

The fourth proportional to 380,878.24, 571,121.52 and 223,417.12 is: 335,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,878.24 : 571,121.52 = 223,417.12 : x
  2. Step 2: Convert to fraction form
    380,878.24/571,121.52 = 223,417.12/x
  3. Step 3: Cross multiply
    380,878.24x = 571,121.52 × 223,417.12
  4. Step 4: Simplify right side
    380,878.24x = 127,598,325,168.42
  5. Step 5: Solve for x
    x = 127,598,325,168.42/380,878.24
  6. Step 6: Final answer
    x = 335,010.80

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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.