Home / 389,196.64-537,090.45-219,429.55

Finding the Fourth Proportional to 389,196.64, 537,090.45 and 219,429.55

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Solution

The fourth proportional to 389,196.64, 537,090.45 and 219,429.55 is: 302,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,196.64 : 537,090.45 = 219,429.55 : x
  2. Step 2: Convert to fraction form
    389,196.64/537,090.45 = 219,429.55/x
  3. Step 3: Cross multiply
    389,196.64x = 537,090.45 × 219,429.55
  4. Step 4: Simplify right side
    389,196.64x = 117,853,515,752.80
  5. Step 5: Solve for x
    x = 117,853,515,752.80/389,196.64
  6. Step 6: Final answer
    x = 302,812.26

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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.