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Finding the Fourth Proportional to 247,286.40, 370,707.84 and 89,477.76

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Solution

The fourth proportional to 247,286.40, 370,707.84 and 89,477.76 is: 134,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,286.40 : 370,707.84 = 89,477.76 : x
  2. Step 2: Convert to fraction form
    247,286.40/370,707.84 = 89,477.76/x
  3. Step 3: Cross multiply
    247,286.40x = 370,707.84 × 89,477.76
  4. Step 4: Simplify right side
    247,286.40x = 33,170,107,137.64
  5. Step 5: Solve for x
    x = 33,170,107,137.64/247,286.40
  6. Step 6: Final answer
    x = 134,136.40

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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.