Home / 221,038.49-331,572.30-80,895.53

Finding the Fourth Proportional to 221,038.49, 331,572.30 and 80,895.53

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Solution

The fourth proportional to 221,038.49, 331,572.30 and 80,895.53 is: 121,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,038.49 : 331,572.30 = 80,895.53 : x
  2. Step 2: Convert to fraction form
    221,038.49/331,572.30 = 80,895.53/x
  3. Step 3: Cross multiply
    221,038.49x = 331,572.30 × 80,895.53
  4. Step 4: Simplify right side
    221,038.49x = 26,822,716,941.82
  5. Step 5: Solve for x
    x = 26,822,716,941.82/221,038.49
  6. Step 6: Final answer
    x = 121,348.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.