Home / 282,022.75-389,191.40-154,698.65

Finding the Fourth Proportional to 282,022.75, 389,191.40 and 154,698.65

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Solution

The fourth proportional to 282,022.75, 389,191.40 and 154,698.65 is: 213,484.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,022.75 : 389,191.40 = 154,698.65 : x
  2. Step 2: Convert to fraction form
    282,022.75/389,191.40 = 154,698.65/x
  3. Step 3: Cross multiply
    282,022.75x = 389,191.40 × 154,698.65
  4. Step 4: Simplify right side
    282,022.75x = 60,207,384,171.61
  5. Step 5: Solve for x
    x = 60,207,384,171.61/282,022.75
  6. Step 6: Final answer
    x = 213,484.14

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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.