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Finding the Fourth Proportional to 245,710.50, 368,394.72 and 108,859.32

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Solution

The fourth proportional to 245,710.50, 368,394.72 and 108,859.32 is: 163,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,710.50 : 368,394.72 = 108,859.32 : x
  2. Step 2: Convert to fraction form
    245,710.50/368,394.72 = 108,859.32/x
  3. Step 3: Cross multiply
    245,710.50x = 368,394.72 × 108,859.32
  4. Step 4: Simplify right side
    245,710.50x = 40,103,198,710.79
  5. Step 5: Solve for x
    x = 40,103,198,710.79/245,710.50
  6. Step 6: Final answer
    x = 163,213.21

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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.