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Finding the Fourth Proportional to 290,245.91, 435,201.24 and 112,545.32

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Solution

The fourth proportional to 290,245.91, 435,201.24 and 112,545.32 is: 168,752.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,245.91 : 435,201.24 = 112,545.32 : x
  2. Step 2: Convert to fraction form
    290,245.91/435,201.24 = 112,545.32/x
  3. Step 3: Cross multiply
    290,245.91x = 435,201.24 × 112,545.32
  4. Step 4: Simplify right side
    290,245.91x = 48,979,860,081.46
  5. Step 5: Solve for x
    x = 48,979,860,081.46/290,245.91
  6. Step 6: Final answer
    x = 168,752.98

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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.