Home / 281,974.80-389,125.30-152,913.22

Finding the Fourth Proportional to 281,974.80, 389,125.30 and 152,913.22

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Solution

The fourth proportional to 281,974.80, 389,125.30 and 152,913.22 is: 211,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,974.80 : 389,125.30 = 152,913.22 : x
  2. Step 2: Convert to fraction form
    281,974.80/389,125.30 = 152,913.22/x
  3. Step 3: Cross multiply
    281,974.80x = 389,125.30 × 152,913.22
  4. Step 4: Simplify right side
    281,974.80x = 59,502,402,606.47
  5. Step 5: Solve for x
    x = 59,502,402,606.47/281,974.80
  6. Step 6: Final answer
    x = 211,020.28

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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.