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Finding the Fourth Proportional to 298,145.97, 411,448.95 and 162,187.56

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Solution

The fourth proportional to 298,145.97, 411,448.95 and 162,187.56 is: 223,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,145.97 : 411,448.95 = 162,187.56 : x
  2. Step 2: Convert to fraction form
    298,145.97/411,448.95 = 162,187.56/x
  3. Step 3: Cross multiply
    298,145.97x = 411,448.95 × 162,187.56
  4. Step 4: Simplify right side
    298,145.97x = 66,731,901,265.06
  5. Step 5: Solve for x
    x = 66,731,901,265.06/298,145.97
  6. Step 6: Final answer
    x = 223,822.92

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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.