Home / 318,176.02-439,091.58-172,991.62

Finding the Fourth Proportional to 318,176.02, 439,091.58 and 172,991.62

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Solution

The fourth proportional to 318,176.02, 439,091.58 and 172,991.62 is: 238,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,176.02 : 439,091.58 = 172,991.62 : x
  2. Step 2: Convert to fraction form
    318,176.02/439,091.58 = 172,991.62/x
  3. Step 3: Cross multiply
    318,176.02x = 439,091.58 × 172,991.62
  4. Step 4: Simplify right side
    318,176.02x = 75,959,163,752.56
  5. Step 5: Solve for x
    x = 75,959,163,752.56/318,176.02
  6. Step 6: Final answer
    x = 238,733.15

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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.