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Finding the Fourth Proportional to 275,855.10, 380,710.17 and 168,424.80

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Solution

The fourth proportional to 275,855.10, 380,710.17 and 168,424.80 is: 232,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,855.10 : 380,710.17 = 168,424.80 : x
  2. Step 2: Convert to fraction form
    275,855.10/380,710.17 = 168,424.80/x
  3. Step 3: Cross multiply
    275,855.10x = 380,710.17 × 168,424.80
  4. Step 4: Simplify right side
    275,855.10x = 64,121,034,240.22
  5. Step 5: Solve for x
    x = 64,121,034,240.22/275,855.10
  6. Step 6: Final answer
    x = 232,444.62

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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.