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Finding the Fourth Proportional to 279,008.80, 385,033.68 and 164,292.40

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Solution

The fourth proportional to 279,008.80, 385,033.68 and 164,292.40 is: 226,724.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,008.80 : 385,033.68 = 164,292.40 : x
  2. Step 2: Convert to fraction form
    279,008.80/385,033.68 = 164,292.40/x
  3. Step 3: Cross multiply
    279,008.80x = 385,033.68 × 164,292.40
  4. Step 4: Simplify right side
    279,008.80x = 63,258,107,368.03
  5. Step 5: Solve for x
    x = 63,258,107,368.03/279,008.80
  6. Step 6: Final answer
    x = 226,724.42

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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.