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Finding the Fourth Proportional to 368,381.70, 508,396.20 and 207,227.10

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Solution

The fourth proportional to 368,381.70, 508,396.20 and 207,227.10 is: 285,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,381.70 : 508,396.20 = 207,227.10 : x
  2. Step 2: Convert to fraction form
    368,381.70/508,396.20 = 207,227.10/x
  3. Step 3: Cross multiply
    368,381.70x = 508,396.20 × 207,227.10
  4. Step 4: Simplify right side
    368,381.70x = 105,353,470,177.02
  5. Step 5: Solve for x
    x = 105,353,470,177.02/368,381.70
  6. Step 6: Final answer
    x = 285,989.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.