Home / 309,943.45-464,423.10-204,639.40

Finding the Fourth Proportional to 309,943.45, 464,423.10 and 204,639.40

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Solution

The fourth proportional to 309,943.45, 464,423.10 and 204,639.40 is: 306,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,943.45 : 464,423.10 = 204,639.40 : x
  2. Step 2: Convert to fraction form
    309,943.45/464,423.10 = 204,639.40/x
  3. Step 3: Cross multiply
    309,943.45x = 464,423.10 × 204,639.40
  4. Step 4: Simplify right side
    309,943.45x = 95,039,264,530.14
  5. Step 5: Solve for x
    x = 95,039,264,530.14/309,943.45
  6. Step 6: Final answer
    x = 306,634.21

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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.