Home / 385,308.20-531,712.26-213,233.45

Finding the Fourth Proportional to 385,308.20, 531,712.26 and 213,233.45

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Solution

The fourth proportional to 385,308.20, 531,712.26 and 213,233.45 is: 294,254.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,308.20 : 531,712.26 = 213,233.45 : x
  2. Step 2: Convert to fraction form
    385,308.20/531,712.26 = 213,233.45/x
  3. Step 3: Cross multiply
    385,308.20x = 531,712.26 × 213,233.45
  4. Step 4: Simplify right side
    385,308.20x = 113,378,839,607.10
  5. Step 5: Solve for x
    x = 113,378,839,607.10/385,308.20
  6. Step 6: Final answer
    x = 294,254.94

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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.