Home / 318,350.97-439,315.11-175,111.02

Finding the Fourth Proportional to 318,350.97, 439,315.11 and 175,111.02

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Solution

The fourth proportional to 318,350.97, 439,315.11 and 175,111.02 is: 241,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,350.97 : 439,315.11 = 175,111.02 : x
  2. Step 2: Convert to fraction form
    318,350.97/439,315.11 = 175,111.02/x
  3. Step 3: Cross multiply
    318,350.97x = 439,315.11 × 175,111.02
  4. Step 4: Simplify right side
    318,350.97x = 76,928,917,013.51
  5. Step 5: Solve for x
    x = 76,928,917,013.51/318,350.97
  6. Step 6: Final answer
    x = 241,648.13

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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.