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Finding the Fourth Proportional to 276,477.50, 381,462.59 and 155,611.73

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Solution

The fourth proportional to 276,477.50, 381,462.59 and 155,611.73 is: 214,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,477.50 : 381,462.59 = 155,611.73 : x
  2. Step 2: Convert to fraction form
    276,477.50/381,462.59 = 155,611.73/x
  3. Step 3: Cross multiply
    276,477.50x = 381,462.59 × 155,611.73
  4. Step 4: Simplify right side
    276,477.50x = 59,360,050,874.81
  5. Step 5: Solve for x
    x = 59,360,050,874.81/276,477.50
  6. Step 6: Final answer
    x = 214,701.20

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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.