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Finding the Fourth Proportional to 276,036.60, 414,152.10 and 118,313.40

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Solution

The fourth proportional to 276,036.60, 414,152.10 and 118,313.40 is: 177,511.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,036.60 : 414,152.10 = 118,313.40 : x
  2. Step 2: Convert to fraction form
    276,036.60/414,152.10 = 118,313.40/x
  3. Step 3: Cross multiply
    276,036.60x = 414,152.10 × 118,313.40
  4. Step 4: Simplify right side
    276,036.60x = 48,999,743,068.14
  5. Step 5: Solve for x
    x = 48,999,743,068.14/276,036.60
  6. Step 6: Final answer
    x = 177,511.76

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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.