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Finding the Fourth Proportional to 276,001.16, 380,879.70 and 156,769.16

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Solution

The fourth proportional to 276,001.16, 380,879.70 and 156,769.16 is: 216,340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,001.16 : 380,879.70 = 156,769.16 : x
  2. Step 2: Convert to fraction form
    276,001.16/380,879.70 = 156,769.16/x
  3. Step 3: Cross multiply
    276,001.16x = 380,879.70 × 156,769.16
  4. Step 4: Simplify right side
    276,001.16x = 59,710,190,630.05
  5. Step 5: Solve for x
    x = 59,710,190,630.05/276,001.16
  6. Step 6: Final answer
    x = 216,340.36

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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.