Home / 389,824.68-537,952.27-217,745.04

Finding the Fourth Proportional to 389,824.68, 537,952.27 and 217,745.04

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Solution

The fourth proportional to 389,824.68, 537,952.27 and 217,745.04 is: 300,484.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,824.68 : 537,952.27 = 217,745.04 : x
  2. Step 2: Convert to fraction form
    389,824.68/537,952.27 = 217,745.04/x
  3. Step 3: Cross multiply
    389,824.68x = 537,952.27 × 217,745.04
  4. Step 4: Simplify right side
    389,824.68x = 117,136,437,460.52
  5. Step 5: Solve for x
    x = 117,136,437,460.52/389,824.68
  6. Step 6: Final answer
    x = 300,484.92

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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.