Home / 286,002.72-394,682.66-156,943.35

Finding the Fourth Proportional to 286,002.72, 394,682.66 and 156,943.35

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Solution

The fourth proportional to 286,002.72, 394,682.66 and 156,943.35 is: 216,581.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,002.72 : 394,682.66 = 156,943.35 : x
  2. Step 2: Convert to fraction form
    286,002.72/394,682.66 = 156,943.35/x
  3. Step 3: Cross multiply
    286,002.72x = 394,682.66 × 156,943.35
  4. Step 4: Simplify right side
    286,002.72x = 61,942,818,062.59
  5. Step 5: Solve for x
    x = 61,942,818,062.59/286,002.72
  6. Step 6: Final answer
    x = 216,581.22

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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.