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Finding the Fourth Proportional to 275,601.92, 380,368.68 and 153,121.76

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Solution

The fourth proportional to 275,601.92, 380,368.68 and 153,121.76 is: 211,329.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,601.92 : 380,368.68 = 153,121.76 : x
  2. Step 2: Convert to fraction form
    275,601.92/380,368.68 = 153,121.76/x
  3. Step 3: Cross multiply
    275,601.92x = 380,368.68 × 153,121.76
  4. Step 4: Simplify right side
    275,601.92x = 58,242,721,730.48
  5. Step 5: Solve for x
    x = 58,242,721,730.48/275,601.92
  6. Step 6: Final answer
    x = 211,329.16

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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.