Home / 282,025.50-389,195.21-154,701.42

Finding the Fourth Proportional to 282,025.50, 389,195.21 and 154,701.42

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Solution

The fourth proportional to 282,025.50, 389,195.21 and 154,701.42 is: 213,487.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,025.50 : 389,195.21 = 154,701.42 : x
  2. Step 2: Convert to fraction form
    282,025.50/389,195.21 = 154,701.42/x
  3. Step 3: Cross multiply
    282,025.50x = 389,195.21 × 154,701.42
  4. Step 4: Simplify right side
    282,025.50x = 60,209,052,030.95
  5. Step 5: Solve for x
    x = 60,209,052,030.95/282,025.50
  6. Step 6: Final answer
    x = 213,487.97

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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.