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Finding the Fourth Proportional to 276,751, 415,126.50 and 89,762.50

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Solution

The fourth proportional to 276,751, 415,126.50 and 89,762.50 is: 134,643.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,751 : 415,126.50 = 89,762.50 : x
  2. Step 2: Convert to fraction form
    276,751/415,126.50 = 89,762.50/x
  3. Step 3: Cross multiply
    276,751x = 415,126.50 × 89,762.50
  4. Step 4: Simplify right side
    276,751x = 37,262,792,456.25
  5. Step 5: Solve for x
    x = 37,262,792,456.25/276,751
  6. Step 6: Final answer
    x = 134,643.75

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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.