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Finding the Fourth Proportional to 282,323.34, 389,606.87 and 155,007.14

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Solution

The fourth proportional to 282,323.34, 389,606.87 and 155,007.14 is: 213,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,323.34 : 389,606.87 = 155,007.14 : x
  2. Step 2: Convert to fraction form
    282,323.34/389,606.87 = 155,007.14/x
  3. Step 3: Cross multiply
    282,323.34x = 389,606.87 × 155,007.14
  4. Step 4: Simplify right side
    282,323.34x = 60,391,846,643.05
  5. Step 5: Solve for x
    x = 60,391,846,643.05/282,323.34
  6. Step 6: Final answer
    x = 213,910.22

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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.