Home / 221,468.55-331,328.02-192,211.35

Finding the Fourth Proportional to 221,468.55, 331,328.02 and 192,211.35

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Solution

The fourth proportional to 221,468.55, 331,328.02 and 192,211.35 is: 287,557.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,468.55 : 331,328.02 = 192,211.35 : x
  2. Step 2: Convert to fraction form
    221,468.55/331,328.02 = 192,211.35/x
  3. Step 3: Cross multiply
    221,468.55x = 331,328.02 × 192,211.35
  4. Step 4: Simplify right side
    221,468.55x = 63,685,006,017.03
  5. Step 5: Solve for x
    x = 63,685,006,017.03/221,468.55
  6. Step 6: Final answer
    x = 287,557.79

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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.