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Finding the Fourth Proportional to 309,560.49, 464,340.74 and 247,624.65

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Solution

The fourth proportional to 309,560.49, 464,340.74 and 247,624.65 is: 371,436.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,560.49 : 464,340.74 = 247,624.65 : x
  2. Step 2: Convert to fraction form
    309,560.49/464,340.74 = 247,624.65/x
  3. Step 3: Cross multiply
    309,560.49x = 464,340.74 × 247,624.65
  4. Step 4: Simplify right side
    309,560.49x = 114,982,211,985.12
  5. Step 5: Solve for x
    x = 114,982,211,985.12/309,560.49
  6. Step 6: Final answer
    x = 371,436.98

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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.