Home / 318,117.47-439,010.51-172,933.02

Finding the Fourth Proportional to 318,117.47, 439,010.51 and 172,933.02

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Solution

The fourth proportional to 318,117.47, 439,010.51 and 172,933.02 is: 238,652.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,117.47 : 439,010.51 = 172,933.02 : x
  2. Step 2: Convert to fraction form
    318,117.47/439,010.51 = 172,933.02/x
  3. Step 3: Cross multiply
    318,117.47x = 439,010.51 × 172,933.02
  4. Step 4: Simplify right side
    318,117.47x = 75,919,412,441.38
  5. Step 5: Solve for x
    x = 75,919,412,441.38/318,117.47
  6. Step 6: Final answer
    x = 238,652.14

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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.