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Finding the Fourth Proportional to 239,639.88, 330,466.80 and 185,905.32

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Solution

The fourth proportional to 239,639.88, 330,466.80 and 185,905.32 is: 256,366.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,639.88 : 330,466.80 = 185,905.32 : x
  2. Step 2: Convert to fraction form
    239,639.88/330,466.80 = 185,905.32/x
  3. Step 3: Cross multiply
    239,639.88x = 330,466.80 × 185,905.32
  4. Step 4: Simplify right side
    239,639.88x = 61,435,536,203.38
  5. Step 5: Solve for x
    x = 61,435,536,203.38/239,639.88
  6. Step 6: Final answer
    x = 256,366.08

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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.