Home / 282,334.11-389,621.84-155,017.95

Finding the Fourth Proportional to 282,334.11, 389,621.84 and 155,017.95

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Solution

The fourth proportional to 282,334.11, 389,621.84 and 155,017.95 is: 213,925.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,334.11 : 389,621.84 = 155,017.95 : x
  2. Step 2: Convert to fraction form
    282,334.11/389,621.84 = 155,017.95/x
  3. Step 3: Cross multiply
    282,334.11x = 389,621.84 × 155,017.95
  4. Step 4: Simplify right side
    282,334.11x = 60,398,378,136.94
  5. Step 5: Solve for x
    x = 60,398,378,136.94/282,334.11
  6. Step 6: Final answer
    x = 213,925.19

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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.