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Finding the Fourth Proportional to 276,522.77, 381,637.77 and 155,687.68

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Solution

The fourth proportional to 276,522.77, 381,637.77 and 155,687.68 is: 214,869.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,522.77 : 381,637.77 = 155,687.68 : x
  2. Step 2: Convert to fraction form
    276,522.77/381,637.77 = 155,687.68/x
  3. Step 3: Cross multiply
    276,522.77x = 381,637.77 × 155,687.68
  4. Step 4: Simplify right side
    276,522.77x = 59,416,298,904.89
  5. Step 5: Solve for x
    x = 59,416,298,904.89/276,522.77
  6. Step 6: Final answer
    x = 214,869.46

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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.