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Finding the Fourth Proportional to 636,604.68, 954,907.26 and 163,290

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Solution

The fourth proportional to 636,604.68, 954,907.26 and 163,290 is: 244,935.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,604.68 : 954,907.26 = 163,290 : x
  2. Step 2: Convert to fraction form
    636,604.68/954,907.26 = 163,290/x
  3. Step 3: Cross multiply
    636,604.68x = 954,907.26 × 163,290
  4. Step 4: Simplify right side
    636,604.68x = 155,926,806,485.40
  5. Step 5: Solve for x
    x = 155,926,806,485.40/636,604.68
  6. Step 6: Final answer
    x = 244,935.06

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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.