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Finding the Fourth Proportional to 664,298.70, 996,593.85 and 214,943.10

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Solution

The fourth proportional to 664,298.70, 996,593.85 and 214,943.10 is: 322,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,298.70 : 996,593.85 = 214,943.10 : x
  2. Step 2: Convert to fraction form
    664,298.70/996,593.85 = 214,943.10/x
  3. Step 3: Cross multiply
    664,298.70x = 996,593.85 × 214,943.10
  4. Step 4: Simplify right side
    664,298.70x = 214,210,971,559.94
  5. Step 5: Solve for x
    x = 214,210,971,559.94/664,298.70
  6. Step 6: Final answer
    x = 322,461.83

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1.5x scale

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.