Home / 282,053.25-389,231.55-152,991.20

Finding the Fourth Proportional to 282,053.25, 389,231.55 and 152,991.20

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Solution

The fourth proportional to 282,053.25, 389,231.55 and 152,991.20 is: 211,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,053.25 : 389,231.55 = 152,991.20 : x
  2. Step 2: Convert to fraction form
    282,053.25/389,231.55 = 152,991.20/x
  3. Step 3: Cross multiply
    282,053.25x = 389,231.55 × 152,991.20
  4. Step 4: Simplify right side
    282,053.25x = 59,549,001,912.36
  5. Step 5: Solve for x
    x = 59,549,001,912.36/282,053.25
  6. Step 6: Final answer
    x = 211,126.81

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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.