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Finding the Fourth Proportional to 354,234.55, 488,848.81 and 193,089.64

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Solution

The fourth proportional to 354,234.55, 488,848.81 and 193,089.64 is: 266,466.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,234.55 : 488,848.81 = 193,089.64 : x
  2. Step 2: Convert to fraction form
    354,234.55/488,848.81 = 193,089.64/x
  3. Step 3: Cross multiply
    354,234.55x = 488,848.81 × 193,089.64
  4. Step 4: Simplify right side
    354,234.55x = 94,391,640,737.33
  5. Step 5: Solve for x
    x = 94,391,640,737.33/354,234.55
  6. Step 6: Final answer
    x = 266,466.50

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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.