Home / 212,363.67-318,545.18-145,601.40

Finding the Fourth Proportional to 212,363.67, 318,545.18 and 145,601.40

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Solution

The fourth proportional to 212,363.67, 318,545.18 and 145,601.40 is: 218,401.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,363.67 : 318,545.18 = 145,601.40 : x
  2. Step 2: Convert to fraction form
    212,363.67/318,545.18 = 145,601.40/x
  3. Step 3: Cross multiply
    212,363.67x = 318,545.18 × 145,601.40
  4. Step 4: Simplify right side
    212,363.67x = 46,380,624,171.25
  5. Step 5: Solve for x
    x = 46,380,624,171.25/212,363.67
  6. Step 6: Final answer
    x = 218,401.88

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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.