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Finding the Fourth Proportional to 163,364.10, 245,046.15 and 103,440.30

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Solution

The fourth proportional to 163,364.10, 245,046.15 and 103,440.30 is: 155,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,364.10 : 245,046.15 = 103,440.30 : x
  2. Step 2: Convert to fraction form
    163,364.10/245,046.15 = 103,440.30/x
  3. Step 3: Cross multiply
    163,364.10x = 245,046.15 × 103,440.30
  4. Step 4: Simplify right side
    163,364.10x = 25,347,647,269.85
  5. Step 5: Solve for x
    x = 25,347,647,269.85/163,364.10
  6. Step 6: Final answer
    x = 155,160.45

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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.