Home / 282,452.47-389,803.50-155,129.38

Finding the Fourth Proportional to 282,452.47, 389,803.50 and 155,129.38

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Solution

The fourth proportional to 282,452.47, 389,803.50 and 155,129.38 is: 214,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,452.47 : 389,803.50 = 155,129.38 : x
  2. Step 2: Convert to fraction form
    282,452.47/389,803.50 = 155,129.38/x
  3. Step 3: Cross multiply
    282,452.47x = 389,803.50 × 155,129.38
  4. Step 4: Simplify right side
    282,452.47x = 60,469,974,302.32
  5. Step 5: Solve for x
    x = 60,469,974,302.32/282,452.47
  6. Step 6: Final answer
    x = 214,089.03

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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.