Home / 331,035.33-457,289.91-318,745.74

Finding the Fourth Proportional to 331,035.33, 457,289.91 and 318,745.74

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Solution

The fourth proportional to 331,035.33, 457,289.91 and 318,745.74 is: 440,313.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,035.33 : 457,289.91 = 318,745.74 : x
  2. Step 2: Convert to fraction form
    331,035.33/457,289.91 = 318,745.74/x
  3. Step 3: Cross multiply
    331,035.33x = 457,289.91 × 318,745.74
  4. Step 4: Simplify right side
    331,035.33x = 145,759,210,757.48
  5. Step 5: Solve for x
    x = 145,759,210,757.48/331,035.33
  6. Step 6: Final answer
    x = 440,313.16

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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.