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Finding the Fourth Proportional to 279,335.55, 385,524.57 and 164,577.51

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Solution

The fourth proportional to 279,335.55, 385,524.57 and 164,577.51 is: 227,141.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,335.55 : 385,524.57 = 164,577.51 : x
  2. Step 2: Convert to fraction form
    279,335.55/385,524.57 = 164,577.51/x
  3. Step 3: Cross multiply
    279,335.55x = 385,524.57 × 164,577.51
  4. Step 4: Simplify right side
    279,335.55x = 63,448,673,774.42
  5. Step 5: Solve for x
    x = 63,448,673,774.42/279,335.55
  6. Step 6: Final answer
    x = 227,141.42

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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.