Home / 318,239.28-439,181-175,005.36

Finding the Fourth Proportional to 318,239.28, 439,181 and 175,005.36

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Solution

The fourth proportional to 318,239.28, 439,181 and 175,005.36 is: 241,513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,239.28 : 439,181 = 175,005.36 : x
  2. Step 2: Convert to fraction form
    318,239.28/439,181 = 175,005.36/x
  3. Step 3: Cross multiply
    318,239.28x = 439,181 × 175,005.36
  4. Step 4: Simplify right side
    318,239.28x = 76,859,029,010.16
  5. Step 5: Solve for x
    x = 76,859,029,010.16/318,239.28
  6. Step 6: Final answer
    x = 241,513.33

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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.