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Finding the Fourth Proportional to 282,323.59, 389,607.22 and 155,007.39

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Solution

The fourth proportional to 282,323.59, 389,607.22 and 155,007.39 is: 213,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,323.59 : 389,607.22 = 155,007.39 : x
  2. Step 2: Convert to fraction form
    282,323.59/389,607.22 = 155,007.39/x
  3. Step 3: Cross multiply
    282,323.59x = 389,607.22 × 155,007.39
  4. Step 4: Simplify right side
    282,323.59x = 60,391,998,297.36
  5. Step 5: Solve for x
    x = 60,391,998,297.36/282,323.59
  6. Step 6: Final answer
    x = 213,910.56

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1.5x scale

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.