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Finding the Fourth Proportional to 491,355.12, 736,566.12 and 192,027.72

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Solution

The fourth proportional to 491,355.12, 736,566.12 and 192,027.72 is: 287,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,355.12 : 736,566.12 = 192,027.72 : x
  2. Step 2: Convert to fraction form
    491,355.12/736,566.12 = 192,027.72/x
  3. Step 3: Cross multiply
    491,355.12x = 736,566.12 × 192,027.72
  4. Step 4: Simplify right side
    491,355.12x = 141,441,112,652.85
  5. Step 5: Solve for x
    x = 141,441,112,652.85/491,355.12
  6. Step 6: Final answer
    x = 287,859.24

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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.