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Finding the Fourth Proportional to 286,033.88, 394,726.84 and 158,710.40

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Solution

The fourth proportional to 286,033.88, 394,726.84 and 158,710.40 is: 219,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,033.88 : 394,726.84 = 158,710.40 : x
  2. Step 2: Convert to fraction form
    286,033.88/394,726.84 = 158,710.40/x
  3. Step 3: Cross multiply
    286,033.88x = 394,726.84 × 158,710.40
  4. Step 4: Simplify right side
    286,033.88x = 62,647,254,667.14
  5. Step 5: Solve for x
    x = 62,647,254,667.14/286,033.88
  6. Step 6: Final answer
    x = 219,020.40

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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.