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Finding the Fourth Proportional to 618,813.03, 928,220.40 and 169,537.80

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Solution

The fourth proportional to 618,813.03, 928,220.40 and 169,537.80 is: 254,306.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,813.03 : 928,220.40 = 169,537.80 : x
  2. Step 2: Convert to fraction form
    618,813.03/928,220.40 = 169,537.80/x
  3. Step 3: Cross multiply
    618,813.03x = 928,220.40 × 169,537.80
  4. Step 4: Simplify right side
    618,813.03x = 157,368,444,531.12
  5. Step 5: Solve for x
    x = 157,368,444,531.12/618,813.03
  6. Step 6: Final answer
    x = 254,306.93

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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.