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Finding the Fourth Proportional to 354,500.22, 489,216.14 and 193,355.28

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Solution

The fourth proportional to 354,500.22, 489,216.14 and 193,355.28 is: 266,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,500.22 : 489,216.14 = 193,355.28 : x
  2. Step 2: Convert to fraction form
    354,500.22/489,216.14 = 193,355.28/x
  3. Step 3: Cross multiply
    354,500.22x = 489,216.14 × 193,355.28
  4. Step 4: Simplify right side
    354,500.22x = 94,592,523,730.22
  5. Step 5: Solve for x
    x = 94,592,523,730.22/354,500.22
  6. Step 6: Final answer
    x = 266,833.47

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1.5x scale

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.