Home / 282,175.20-389,412.96-154,855.36

Finding the Fourth Proportional to 282,175.20, 389,412.96 and 154,855.36

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Solution

The fourth proportional to 282,175.20, 389,412.96 and 154,855.36 is: 213,706.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,175.20 : 389,412.96 = 154,855.36 : x
  2. Step 2: Convert to fraction form
    282,175.20/389,412.96 = 154,855.36/x
  3. Step 3: Cross multiply
    282,175.20x = 389,412.96 × 154,855.36
  4. Step 4: Simplify right side
    282,175.20x = 60,302,684,109.47
  5. Step 5: Solve for x
    x = 60,302,684,109.47/282,175.20
  6. Step 6: Final answer
    x = 213,706.53

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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.