Home / 318,117.22-439,010.16-172,932.77

Finding the Fourth Proportional to 318,117.22, 439,010.16 and 172,932.77

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Solution

The fourth proportional to 318,117.22, 439,010.16 and 172,932.77 is: 238,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,117.22 : 439,010.16 = 172,932.77 : x
  2. Step 2: Convert to fraction form
    318,117.22/439,010.16 = 172,932.77/x
  3. Step 3: Cross multiply
    318,117.22x = 439,010.16 × 172,932.77
  4. Step 4: Simplify right side
    318,117.22x = 75,919,240,831.89
  5. Step 5: Solve for x
    x = 75,919,240,831.89/318,117.22
  6. Step 6: Final answer
    x = 238,651.78

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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.