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Finding the Fourth Proportional to 230,479.48, 345,690.06 and 90,336.52

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Solution

The fourth proportional to 230,479.48, 345,690.06 and 90,336.52 is: 135,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,479.48 : 345,690.06 = 90,336.52 : x
  2. Step 2: Convert to fraction form
    230,479.48/345,690.06 = 90,336.52/x
  3. Step 3: Cross multiply
    230,479.48x = 345,690.06 × 90,336.52
  4. Step 4: Simplify right side
    230,479.48x = 31,228,437,018.99
  5. Step 5: Solve for x
    x = 31,228,437,018.99/230,479.48
  6. Step 6: Final answer
    x = 135,493.35

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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.