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Finding the Fourth Proportional to 449,545.68, 674,650.35 and 212,887.98

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Solution

The fourth proportional to 449,545.68, 674,650.35 and 212,887.98 is: 319,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,545.68 : 674,650.35 = 212,887.98 : x
  2. Step 2: Convert to fraction form
    449,545.68/674,650.35 = 212,887.98/x
  3. Step 3: Cross multiply
    449,545.68x = 674,650.35 × 212,887.98
  4. Step 4: Simplify right side
    449,545.68x = 143,624,950,217.79
  5. Step 5: Solve for x
    x = 143,624,950,217.79/449,545.68
  6. Step 6: Final answer
    x = 319,489.11

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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.