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Finding the Fourth Proportional to 275,166.56, 379,734 and 160,442.08

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Solution

The fourth proportional to 275,166.56, 379,734 and 160,442.08 is: 221,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,166.56 : 379,734 = 160,442.08 : x
  2. Step 2: Convert to fraction form
    275,166.56/379,734 = 160,442.08/x
  3. Step 3: Cross multiply
    275,166.56x = 379,734 × 160,442.08
  4. Step 4: Simplify right side
    275,166.56x = 60,925,312,806.72
  5. Step 5: Solve for x
    x = 60,925,312,806.72/275,166.56
  6. Step 6: Final answer
    x = 221,412.49

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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.