Home / 318,160.35-439,056.55-172,961.31

Finding the Fourth Proportional to 318,160.35, 439,056.55 and 172,961.31

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Solution

The fourth proportional to 318,160.35, 439,056.55 and 172,961.31 is: 238,684.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,160.35 : 439,056.55 = 172,961.31 : x
  2. Step 2: Convert to fraction form
    318,160.35/439,056.55 = 172,961.31/x
  3. Step 3: Cross multiply
    318,160.35x = 439,056.55 × 172,961.31
  4. Step 4: Simplify right side
    318,160.35x = 75,939,796,052.08
  5. Step 5: Solve for x
    x = 75,939,796,052.08/318,160.35
  6. Step 6: Final answer
    x = 238,684.03

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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.