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Finding the Fourth Proportional to 275,916.10, 380,730.06 and 159,649.56

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Solution

The fourth proportional to 275,916.10, 380,730.06 and 159,649.56 is: 220,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,916.10 : 380,730.06 = 159,649.56 : x
  2. Step 2: Convert to fraction form
    275,916.10/380,730.06 = 159,649.56/x
  3. Step 3: Cross multiply
    275,916.10x = 380,730.06 × 159,649.56
  4. Step 4: Simplify right side
    275,916.10x = 60,783,386,557.77
  5. Step 5: Solve for x
    x = 60,783,386,557.77/275,916.10
  6. Step 6: Final answer
    x = 220,296.63

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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.