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Finding the Fourth Proportional to 276,353.27, 381,374.96 and 155,498.84

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Solution

The fourth proportional to 276,353.27, 381,374.96 and 155,498.84 is: 214,592.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,353.27 : 381,374.96 = 155,498.84 : x
  2. Step 2: Convert to fraction form
    276,353.27/381,374.96 = 155,498.84/x
  3. Step 3: Cross multiply
    276,353.27x = 381,374.96 × 155,498.84
  4. Step 4: Simplify right side
    276,353.27x = 59,303,363,068.17
  5. Step 5: Solve for x
    x = 59,303,363,068.17/276,353.27
  6. Step 6: Final answer
    x = 214,592.59

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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.