Home / 282,326.35-389,611.02-155,010.15

Finding the Fourth Proportional to 282,326.35, 389,611.02 and 155,010.15

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Solution

The fourth proportional to 282,326.35, 389,611.02 and 155,010.15 is: 213,914.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,326.35 : 389,611.02 = 155,010.15 : x
  2. Step 2: Convert to fraction form
    282,326.35/389,611.02 = 155,010.15/x
  3. Step 3: Cross multiply
    282,326.35x = 389,611.02 × 155,010.15
  4. Step 4: Simplify right side
    282,326.35x = 60,393,662,651.85
  5. Step 5: Solve for x
    x = 60,393,662,651.85/282,326.35
  6. Step 6: Final answer
    x = 213,914.37

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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.