Home / 282,322.94-389,593.41-155,000.66

Finding the Fourth Proportional to 282,322.94, 389,593.41 and 155,000.66

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Solution

The fourth proportional to 282,322.94, 389,593.41 and 155,000.66 is: 213,894.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,322.94 : 389,593.41 = 155,000.66 : x
  2. Step 2: Convert to fraction form
    282,322.94/389,593.41 = 155,000.66/x
  3. Step 3: Cross multiply
    282,322.94x = 389,593.41 × 155,000.66
  4. Step 4: Simplify right side
    282,322.94x = 60,387,235,681.65
  5. Step 5: Solve for x
    x = 60,387,235,681.65/282,322.94
  6. Step 6: Final answer
    x = 213,894.19

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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.