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Finding the Fourth Proportional to 286,084.50, 394,783.30 and 158,758.98

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Solution

The fourth proportional to 286,084.50, 394,783.30 and 158,758.98 is: 219,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,084.50 : 394,783.30 = 158,758.98 : x
  2. Step 2: Convert to fraction form
    286,084.50/394,783.30 = 158,758.98/x
  3. Step 3: Cross multiply
    286,084.50x = 394,783.30 × 158,758.98
  4. Step 4: Simplify right side
    286,084.50x = 62,675,394,029.03
  5. Step 5: Solve for x
    x = 62,675,394,029.03/286,084.50
  6. Step 6: Final answer
    x = 219,080.01

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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.