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Finding the Fourth Proportional to 276,114.60, 414,171.90 and 143,254.35

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Solution

The fourth proportional to 276,114.60, 414,171.90 and 143,254.35 is: 214,881.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,114.60 : 414,171.90 = 143,254.35 : x
  2. Step 2: Convert to fraction form
    276,114.60/414,171.90 = 143,254.35/x
  3. Step 3: Cross multiply
    276,114.60x = 414,171.90 × 143,254.35
  4. Step 4: Simplify right side
    276,114.60x = 59,331,926,322.77
  5. Step 5: Solve for x
    x = 59,331,926,322.77/276,114.60
  6. Step 6: Final answer
    x = 214,881.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.