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Finding the Fourth Proportional to 279,306.53, 385,471.31 and 164,622.07

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Solution

The fourth proportional to 279,306.53, 385,471.31 and 164,622.07 is: 227,195.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,306.53 : 385,471.31 = 164,622.07 : x
  2. Step 2: Convert to fraction form
    279,306.53/385,471.31 = 164,622.07/x
  3. Step 3: Cross multiply
    279,306.53x = 385,471.31 × 164,622.07
  4. Step 4: Simplify right side
    279,306.53x = 63,457,084,636.54
  5. Step 5: Solve for x
    x = 63,457,084,636.54/279,306.53
  6. Step 6: Final answer
    x = 227,195.14

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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.