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Finding the Fourth Proportional to 247,384.64, 370,781.72 and 135,093.12

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Solution

The fourth proportional to 247,384.64, 370,781.72 and 135,093.12 is: 202,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,384.64 : 370,781.72 = 135,093.12 : x
  2. Step 2: Convert to fraction form
    247,384.64/370,781.72 = 135,093.12/x
  3. Step 3: Cross multiply
    247,384.64x = 370,781.72 × 135,093.12
  4. Step 4: Simplify right side
    247,384.64x = 50,090,059,393.77
  5. Step 5: Solve for x
    x = 50,090,059,393.77/247,384.64
  6. Step 6: Final answer
    x = 202,478.45

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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.