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Finding the Fourth Proportional to 303,138.66, 418,325.82 and 167,185.16

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Solution

The fourth proportional to 303,138.66, 418,325.82 and 167,185.16 is: 230,712.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,138.66 : 418,325.82 = 167,185.16 : x
  2. Step 2: Convert to fraction form
    303,138.66/418,325.82 = 167,185.16/x
  3. Step 3: Cross multiply
    303,138.66x = 418,325.82 × 167,185.16
  4. Step 4: Simplify right side
    303,138.66x = 69,937,869,148.83
  5. Step 5: Solve for x
    x = 69,937,869,148.83/303,138.66
  6. Step 6: Final answer
    x = 230,712.47

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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.