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Finding the Fourth Proportional to 279,360.75, 385,450.60 and 164,643.96

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Solution

The fourth proportional to 279,360.75, 385,450.60 and 164,643.96 is: 227,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,360.75 : 385,450.60 = 164,643.96 : x
  2. Step 2: Convert to fraction form
    279,360.75/385,450.60 = 164,643.96/x
  3. Step 3: Cross multiply
    279,360.75x = 385,450.60 × 164,643.96
  4. Step 4: Simplify right side
    279,360.75x = 63,462,113,168.38
  5. Step 5: Solve for x
    x = 63,462,113,168.38/279,360.75
  6. Step 6: Final answer
    x = 227,169.04

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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.