Home / 313,579.40-470,369.10-147,691.40

Finding the Fourth Proportional to 313,579.40, 470,369.10 and 147,691.40

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Solution

The fourth proportional to 313,579.40, 470,369.10 and 147,691.40 is: 221,537.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,579.40 : 470,369.10 = 147,691.40 : x
  2. Step 2: Convert to fraction form
    313,579.40/470,369.10 = 147,691.40/x
  3. Step 3: Cross multiply
    313,579.40x = 470,369.10 × 147,691.40
  4. Step 4: Simplify right side
    313,579.40x = 69,469,470,895.74
  5. Step 5: Solve for x
    x = 69,469,470,895.74/313,579.40
  6. Step 6: Final answer
    x = 221,537.10

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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.