Home / 282,548.13-389,916.57-155,231.92

Finding the Fourth Proportional to 282,548.13, 389,916.57 and 155,231.92

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Solution

The fourth proportional to 282,548.13, 389,916.57 and 155,231.92 is: 214,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,548.13 : 389,916.57 = 155,231.92 : x
  2. Step 2: Convert to fraction form
    282,548.13/389,916.57 = 155,231.92/x
  3. Step 3: Cross multiply
    282,548.13x = 389,916.57 × 155,231.92
  4. Step 4: Simplify right side
    282,548.13x = 60,527,497,800.91
  5. Step 5: Solve for x
    x = 60,527,497,800.91/282,548.13
  6. Step 6: Final answer
    x = 214,220.13

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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.