Home / 389,595.35-537,649.99-215,165.03

Finding the Fourth Proportional to 389,595.35, 537,649.99 and 215,165.03

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Solution

The fourth proportional to 389,595.35, 537,649.99 and 215,165.03 is: 296,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,595.35 : 537,649.99 = 215,165.03 : x
  2. Step 2: Convert to fraction form
    389,595.35/537,649.99 = 215,165.03/x
  3. Step 3: Cross multiply
    389,595.35x = 537,649.99 × 215,165.03
  4. Step 4: Simplify right side
    389,595.35x = 115,683,473,001.69
  5. Step 5: Solve for x
    x = 115,683,473,001.69/389,595.35
  6. Step 6: Final answer
    x = 296,932.37

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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.