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Finding the Fourth Proportional to 286,205.00, 394,943.11 and 158,870.57

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Solution

The fourth proportional to 286,205.00, 394,943.11 and 158,870.57 is: 219,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,205.00 : 394,943.11 = 158,870.57 : x
  2. Step 2: Convert to fraction form
    286,205.00/394,943.11 = 158,870.57/x
  3. Step 3: Cross multiply
    286,205.00x = 394,943.11 × 158,870.57
  4. Step 4: Simplify right side
    286,205.00x = 62,744,834,631.38
  5. Step 5: Solve for x
    x = 62,744,834,631.38/286,205.00
  6. Step 6: Final answer
    x = 219,230.40

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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.