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Finding the Fourth Proportional to 618,914.74, 928,272.49 and 169,530.54

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Solution

The fourth proportional to 618,914.74, 928,272.49 and 169,530.54 is: 254,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,914.74 : 928,272.49 = 169,530.54 : x
  2. Step 2: Convert to fraction form
    618,914.74/928,272.49 = 169,530.54/x
  3. Step 3: Cross multiply
    618,914.74x = 928,272.49 × 169,530.54
  4. Step 4: Simplify right side
    618,914.74x = 157,370,541,139.50
  5. Step 5: Solve for x
    x = 157,370,541,139.50/618,914.74
  6. Step 6: Final answer
    x = 254,268.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.