Home / 318,419.75-439,418.60-175,179.45

Finding the Fourth Proportional to 318,419.75, 439,418.60 and 175,179.45

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Solution

The fourth proportional to 318,419.75, 439,418.60 and 175,179.45 is: 241,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,419.75 : 439,418.60 = 175,179.45 : x
  2. Step 2: Convert to fraction form
    318,419.75/439,418.60 = 175,179.45/x
  3. Step 3: Cross multiply
    318,419.75x = 439,418.60 × 175,179.45
  4. Step 4: Simplify right side
    318,419.75x = 76,977,108,667.77
  5. Step 5: Solve for x
    x = 76,977,108,667.77/318,419.75
  6. Step 6: Final answer
    x = 241,747.28

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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.