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Finding the Fourth Proportional to 276,570.40, 414,855.60 and 99,083.20

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Solution

The fourth proportional to 276,570.40, 414,855.60 and 99,083.20 is: 148,624.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,570.40 : 414,855.60 = 99,083.20 : x
  2. Step 2: Convert to fraction form
    276,570.40/414,855.60 = 99,083.20/x
  3. Step 3: Cross multiply
    276,570.40x = 414,855.60 × 99,083.20
  4. Step 4: Simplify right side
    276,570.40x = 41,105,220,385.92
  5. Step 5: Solve for x
    x = 41,105,220,385.92/276,570.40
  6. Step 6: Final answer
    x = 148,624.80

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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.