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Finding the Fourth Proportional to 279,468.50, 385,763.74 and 166,288.82

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Solution

The fourth proportional to 279,468.50, 385,763.74 and 166,288.82 is: 229,536.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,468.50 : 385,763.74 = 166,288.82 : x
  2. Step 2: Convert to fraction form
    279,468.50/385,763.74 = 166,288.82/x
  3. Step 3: Cross multiply
    279,468.50x = 385,763.74 × 166,288.82
  4. Step 4: Simplify right side
    279,468.50x = 64,148,197,123.39
  5. Step 5: Solve for x
    x = 64,148,197,123.39/279,468.50
  6. Step 6: Final answer
    x = 229,536.41

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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.