Home / 281,971.79-389,121.16-152,910.23

Finding the Fourth Proportional to 281,971.79, 389,121.16 and 152,910.23

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Solution

The fourth proportional to 281,971.79, 389,121.16 and 152,910.23 is: 211,016.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,971.79 : 389,121.16 = 152,910.23 : x
  2. Step 2: Convert to fraction form
    281,971.79/389,121.16 = 152,910.23/x
  3. Step 3: Cross multiply
    281,971.79x = 389,121.16 × 152,910.23
  4. Step 4: Simplify right side
    281,971.79x = 59,500,604,614.26
  5. Step 5: Solve for x
    x = 59,500,604,614.26/281,971.79
  6. Step 6: Final answer
    x = 211,016.16

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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.