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Finding the Fourth Proportional to 239,588.10, 330,737.85 and 154,746.54

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Solution

The fourth proportional to 239,588.10, 330,737.85 and 154,746.54 is: 213,618.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,588.10 : 330,737.85 = 154,746.54 : x
  2. Step 2: Convert to fraction form
    239,588.10/330,737.85 = 154,746.54/x
  3. Step 3: Cross multiply
    239,588.10x = 330,737.85 × 154,746.54
  4. Step 4: Simplify right side
    239,588.10x = 51,180,537,934.54
  5. Step 5: Solve for x
    x = 51,180,537,934.54/239,588.10
  6. Step 6: Final answer
    x = 213,618.86

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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.