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Finding the Fourth Proportional to 482,991.20, 666,521.51 and 276,258.20

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Solution

The fourth proportional to 482,991.20, 666,521.51 and 276,258.20 is: 381,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,991.20 : 666,521.51 = 276,258.20 : x
  2. Step 2: Convert to fraction form
    482,991.20/666,521.51 = 276,258.20/x
  3. Step 3: Cross multiply
    482,991.20x = 666,521.51 × 276,258.20
  4. Step 4: Simplify right side
    482,991.20x = 184,132,029,453.94
  5. Step 5: Solve for x
    x = 184,132,029,453.94/482,991.20
  6. Step 6: Final answer
    x = 381,232.68

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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.