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Finding the Fourth Proportional to 345,666.54, 518,499.82 and 109,027.67

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Solution

The fourth proportional to 345,666.54, 518,499.82 and 109,027.67 is: 163,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,666.54 : 518,499.82 = 109,027.67 : x
  2. Step 2: Convert to fraction form
    345,666.54/518,499.82 = 109,027.67/x
  3. Step 3: Cross multiply
    345,666.54x = 518,499.82 × 109,027.67
  4. Step 4: Simplify right side
    345,666.54x = 56,530,827,117.09
  5. Step 5: Solve for x
    x = 56,530,827,117.09/345,666.54
  6. Step 6: Final answer
    x = 163,541.51

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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.