Home / 286,006.91-394,689.59-158,682.20

Finding the Fourth Proportional to 286,006.91, 394,689.59 and 158,682.20

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Solution

The fourth proportional to 286,006.91, 394,689.59 and 158,682.20 is: 218,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,006.91 : 394,689.59 = 158,682.20 : x
  2. Step 2: Convert to fraction form
    286,006.91/394,689.59 = 158,682.20/x
  3. Step 3: Cross multiply
    286,006.91x = 394,689.59 × 158,682.20
  4. Step 4: Simplify right side
    286,006.91x = 62,630,210,286.50
  5. Step 5: Solve for x
    x = 62,630,210,286.50/286,006.91
  6. Step 6: Final answer
    x = 218,981.46

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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.