Home / 286,011.84-394,696.40-158,687.13

Finding the Fourth Proportional to 286,011.84, 394,696.40 and 158,687.13

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Solution

The fourth proportional to 286,011.84, 394,696.40 and 158,687.13 is: 218,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,011.84 : 394,696.40 = 158,687.13 : x
  2. Step 2: Convert to fraction form
    286,011.84/394,696.40 = 158,687.13/x
  3. Step 3: Cross multiply
    286,011.84x = 394,696.40 × 158,687.13
  4. Step 4: Simplify right side
    286,011.84x = 62,633,238,937.33
  5. Step 5: Solve for x
    x = 62,633,238,937.33/286,011.84
  6. Step 6: Final answer
    x = 218,988.27

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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.