Home / 282,380.63-389,688-155,058.95

Finding the Fourth Proportional to 282,380.63, 389,688 and 155,058.95

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Solution

The fourth proportional to 282,380.63, 389,688 and 155,058.95 is: 213,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,380.63 : 389,688 = 155,058.95 : x
  2. Step 2: Convert to fraction form
    282,380.63/389,688 = 155,058.95/x
  3. Step 3: Cross multiply
    282,380.63x = 389,688 × 155,058.95
  4. Step 4: Simplify right side
    282,380.63x = 60,424,612,107.60
  5. Step 5: Solve for x
    x = 60,424,612,107.60/282,380.63
  6. Step 6: Final answer
    x = 213,982.85

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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.