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Finding the Fourth Proportional to 276,599.48, 381,703.06 and 155,740.40

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Solution

The fourth proportional to 276,599.48, 381,703.06 and 155,740.40 is: 214,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,599.48 : 381,703.06 = 155,740.40 : x
  2. Step 2: Convert to fraction form
    276,599.48/381,703.06 = 155,740.40/x
  3. Step 3: Cross multiply
    276,599.48x = 381,703.06 × 155,740.40
  4. Step 4: Simplify right side
    276,599.48x = 59,446,587,245.62
  5. Step 5: Solve for x
    x = 59,446,587,245.62/276,599.48
  6. Step 6: Final answer
    x = 214,919.37

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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.