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Finding the Fourth Proportional to 276,009.48, 380,960.28 and 168,669.90

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Solution

The fourth proportional to 276,009.48, 380,960.28 and 168,669.90 is: 232,805.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,009.48 : 380,960.28 = 168,669.90 : x
  2. Step 2: Convert to fraction form
    276,009.48/380,960.28 = 168,669.90/x
  3. Step 3: Cross multiply
    276,009.48x = 380,960.28 × 168,669.90
  4. Step 4: Simplify right side
    276,009.48x = 64,256,532,331.57
  5. Step 5: Solve for x
    x = 64,256,532,331.57/276,009.48
  6. Step 6: Final answer
    x = 232,805.53

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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.