Home / 279,084.30-385,153.13-164,439.34

Finding the Fourth Proportional to 279,084.30, 385,153.13 and 164,439.34

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Solution

The fourth proportional to 279,084.30, 385,153.13 and 164,439.34 is: 226,936.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,084.30 : 385,153.13 = 164,439.34 : x
  2. Step 2: Convert to fraction form
    279,084.30/385,153.13 = 164,439.34/x
  3. Step 3: Cross multiply
    279,084.30x = 385,153.13 × 164,439.34
  4. Step 4: Simplify right side
    279,084.30x = 63,334,326,496.13
  5. Step 5: Solve for x
    x = 63,334,326,496.13/279,084.30
  6. Step 6: Final answer
    x = 226,936.19

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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.