Home / 281,955.85-389,250.27-217,757.36

Finding the Fourth Proportional to 281,955.85, 389,250.27 and 217,757.36

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Solution

The fourth proportional to 281,955.85, 389,250.27 and 217,757.36 is: 300,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,955.85 : 389,250.27 = 217,757.36 : x
  2. Step 2: Convert to fraction form
    281,955.85/389,250.27 = 217,757.36/x
  3. Step 3: Cross multiply
    281,955.85x = 389,250.27 × 217,757.36
  4. Step 4: Simplify right side
    281,955.85x = 84,762,111,629.18
  5. Step 5: Solve for x
    x = 84,762,111,629.18/281,955.85
  6. Step 6: Final answer
    x = 300,621.93

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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.