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Finding the Fourth Proportional to 384,900.41, 531,141.11 and 212,808.42

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Solution

The fourth proportional to 384,900.41, 531,141.11 and 212,808.42 is: 293,663.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,900.41 : 531,141.11 = 212,808.42 : x
  2. Step 2: Convert to fraction form
    384,900.41/531,141.11 = 212,808.42/x
  3. Step 3: Cross multiply
    384,900.41x = 531,141.11 × 212,808.42
  4. Step 4: Simplify right side
    384,900.41x = 113,031,300,416.15
  5. Step 5: Solve for x
    x = 113,031,300,416.15/384,900.41
  6. Step 6: Final answer
    x = 293,663.76

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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.