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Finding the Fourth Proportional to 247,152.21, 370,728.34 and 89,343.76

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Solution

The fourth proportional to 247,152.21, 370,728.34 and 89,343.76 is: 134,015.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,152.21 : 370,728.34 = 89,343.76 : x
  2. Step 2: Convert to fraction form
    247,152.21/370,728.34 = 89,343.76/x
  3. Step 3: Cross multiply
    247,152.21x = 370,728.34 × 89,343.76
  4. Step 4: Simplify right side
    247,152.21x = 33,122,261,533.80
  5. Step 5: Solve for x
    x = 33,122,261,533.80/247,152.21
  6. Step 6: Final answer
    x = 134,015.64

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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.