Home / 282,431.59-389,764.57-155,107.18

Finding the Fourth Proportional to 282,431.59, 389,764.57 and 155,107.18

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Solution

The fourth proportional to 282,431.59, 389,764.57 and 155,107.18 is: 214,052.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,431.59 : 389,764.57 = 155,107.18 : x
  2. Step 2: Convert to fraction form
    282,431.59/389,764.57 = 155,107.18/x
  3. Step 3: Cross multiply
    282,431.59x = 389,764.57 × 155,107.18
  4. Step 4: Simplify right side
    282,431.59x = 60,455,285,019.34
  5. Step 5: Solve for x
    x = 60,455,285,019.34/282,431.59
  6. Step 6: Final answer
    x = 214,052.84

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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.