Home / 318,215.25-439,147.31-174,985.65

Finding the Fourth Proportional to 318,215.25, 439,147.31 and 174,985.65

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Solution

The fourth proportional to 318,215.25, 439,147.31 and 174,985.65 is: 241,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,215.25 : 439,147.31 = 174,985.65 : x
  2. Step 2: Convert to fraction form
    318,215.25/439,147.31 = 174,985.65/x
  3. Step 3: Cross multiply
    318,215.25x = 439,147.31 × 174,985.65
  4. Step 4: Simplify right side
    318,215.25x = 76,844,476,611.17
  5. Step 5: Solve for x
    x = 76,844,476,611.17/318,215.25
  6. Step 6: Final answer
    x = 241,485.84

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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.