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Finding the Fourth Proportional to 286,134.82, 394,866.03 and 158,810.38

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Solution

The fourth proportional to 286,134.82, 394,866.03 and 158,810.38 is: 219,158.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,134.82 : 394,866.03 = 158,810.38 : x
  2. Step 2: Convert to fraction form
    286,134.82/394,866.03 = 158,810.38/x
  3. Step 3: Cross multiply
    286,134.82x = 394,866.03 × 158,810.38
  4. Step 4: Simplify right side
    286,134.82x = 62,708,824,273.39
  5. Step 5: Solve for x
    x = 62,708,824,273.39/286,134.82
  6. Step 6: Final answer
    x = 219,158.31

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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.