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Finding the Fourth Proportional to 253,410.39, 380,607.66 and 186,586.61

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Solution

The fourth proportional to 253,410.39, 380,607.66 and 186,586.61 is: 280,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,410.39 : 380,607.66 = 186,586.61 : x
  2. Step 2: Convert to fraction form
    253,410.39/380,607.66 = 186,586.61/x
  3. Step 3: Cross multiply
    253,410.39x = 380,607.66 × 186,586.61
  4. Step 4: Simplify right side
    253,410.39x = 71,016,291,116.39
  5. Step 5: Solve for x
    x = 71,016,291,116.39/253,410.39
  6. Step 6: Final answer
    x = 280,242.22

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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.