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Finding the Fourth Proportional to 282,323.94, 389,594.79 and 155,001.66

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Solution

The fourth proportional to 282,323.94, 389,594.79 and 155,001.66 is: 213,895.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,323.94 : 389,594.79 = 155,001.66 : x
  2. Step 2: Convert to fraction form
    282,323.94/389,594.79 = 155,001.66/x
  3. Step 3: Cross multiply
    282,323.94x = 389,594.79 × 155,001.66
  4. Step 4: Simplify right side
    282,323.94x = 60,387,839,177.35
  5. Step 5: Solve for x
    x = 60,387,839,177.35/282,323.94
  6. Step 6: Final answer
    x = 213,895.57

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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.