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Finding the Fourth Proportional to 290,451.90, 435,234.06 and 121,880.82

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Solution

The fourth proportional to 290,451.90, 435,234.06 and 121,880.82 is: 182,635.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,451.90 : 435,234.06 = 121,880.82 : x
  2. Step 2: Convert to fraction form
    290,451.90/435,234.06 = 121,880.82/x
  3. Step 3: Cross multiply
    290,451.90x = 435,234.06 × 121,880.82
  4. Step 4: Simplify right side
    290,451.90x = 53,046,684,124.73
  5. Step 5: Solve for x
    x = 53,046,684,124.73/290,451.90
  6. Step 6: Final answer
    x = 182,635.00

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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.