Home / 424,745.74-586,138.36-231,145.22

Finding the Fourth Proportional to 424,745.74, 586,138.36 and 231,145.22

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Solution

The fourth proportional to 424,745.74, 586,138.36 and 231,145.22 is: 318,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,745.74 : 586,138.36 = 231,145.22 : x
  2. Step 2: Convert to fraction form
    424,745.74/586,138.36 = 231,145.22/x
  3. Step 3: Cross multiply
    424,745.74x = 586,138.36 × 231,145.22
  4. Step 4: Simplify right side
    424,745.74x = 135,483,080,172.64
  5. Step 5: Solve for x
    x = 135,483,080,172.64/424,745.74
  6. Step 6: Final answer
    x = 318,974.55

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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.