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Finding the Fourth Proportional to 276,009.22, 380,894.85 and 153,503.32

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Solution

The fourth proportional to 276,009.22, 380,894.85 and 153,503.32 is: 211,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,009.22 : 380,894.85 = 153,503.32 : x
  2. Step 2: Convert to fraction form
    276,009.22/380,894.85 = 153,503.32/x
  3. Step 3: Cross multiply
    276,009.22x = 380,894.85 × 153,503.32
  4. Step 4: Simplify right side
    276,009.22x = 58,468,624,045.90
  5. Step 5: Solve for x
    x = 58,468,624,045.90/276,009.22
  6. Step 6: Final answer
    x = 211,835.76

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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.