Home / 389,854.26-537,968.85-220,105.14

Finding the Fourth Proportional to 389,854.26, 537,968.85 and 220,105.14

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Solution

The fourth proportional to 389,854.26, 537,968.85 and 220,105.14 is: 303,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,854.26 : 537,968.85 = 220,105.14 : x
  2. Step 2: Convert to fraction form
    389,854.26/537,968.85 = 220,105.14/x
  3. Step 3: Cross multiply
    389,854.26x = 537,968.85 × 220,105.14
  4. Step 4: Simplify right side
    389,854.26x = 118,409,709,044.89
  5. Step 5: Solve for x
    x = 118,409,709,044.89/389,854.26
  6. Step 6: Final answer
    x = 303,728.14

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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.