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Finding the Fourth Proportional to 293,808.61, 405,684.75 and 225,717.67

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Solution

The fourth proportional to 293,808.61, 405,684.75 and 225,717.67 is: 311,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,808.61 : 405,684.75 = 225,717.67 : x
  2. Step 2: Convert to fraction form
    293,808.61/405,684.75 = 225,717.67/x
  3. Step 3: Cross multiply
    293,808.61x = 405,684.75 × 225,717.67
  4. Step 4: Simplify right side
    293,808.61x = 91,570,216,524.53
  5. Step 5: Solve for x
    x = 91,570,216,524.53/293,808.61
  6. Step 6: Final answer
    x = 311,666.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.