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Finding the Fourth Proportional to 545,938.80, 818,616.60 and 230,038.80

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Solution

The fourth proportional to 545,938.80, 818,616.60 and 230,038.80 is: 344,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,938.80 : 818,616.60 = 230,038.80 : x
  2. Step 2: Convert to fraction form
    545,938.80/818,616.60 = 230,038.80/x
  3. Step 3: Cross multiply
    545,938.80x = 818,616.60 × 230,038.80
  4. Step 4: Simplify right side
    545,938.80x = 188,313,580,324.08
  5. Step 5: Solve for x
    x = 188,313,580,324.08/545,938.80
  6. Step 6: Final answer
    x = 344,935.33

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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.