Home / 384,956.40-531,243.26-212,886

Finding the Fourth Proportional to 384,956.40, 531,243.26 and 212,886

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Solution

The fourth proportional to 384,956.40, 531,243.26 and 212,886 is: 293,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,956.40 : 531,243.26 = 212,886 : x
  2. Step 2: Convert to fraction form
    384,956.40/531,243.26 = 212,886/x
  3. Step 3: Cross multiply
    384,956.40x = 531,243.26 × 212,886
  4. Step 4: Simplify right side
    384,956.40x = 113,094,251,583.93
  5. Step 5: Solve for x
    x = 113,094,251,583.93/384,956.40
  6. Step 6: Final answer
    x = 293,784.57

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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.