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Finding the Fourth Proportional to 275,938.98, 380,806.32 and 168,557.28

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Solution

The fourth proportional to 275,938.98, 380,806.32 and 168,557.28 is: 232,615.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,938.98 : 380,806.32 = 168,557.28 : x
  2. Step 2: Convert to fraction form
    275,938.98/380,806.32 = 168,557.28/x
  3. Step 3: Cross multiply
    275,938.98x = 380,806.32 × 168,557.28
  4. Step 4: Simplify right side
    275,938.98x = 64,187,677,506.01
  5. Step 5: Solve for x
    x = 64,187,677,506.01/275,938.98
  6. Step 6: Final answer
    x = 232,615.48

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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.