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Finding the Fourth Proportional to 289,782.06, 434,636.13 and 112,167.54

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Solution

The fourth proportional to 289,782.06, 434,636.13 and 112,167.54 is: 168,237.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,782.06 : 434,636.13 = 112,167.54 : x
  2. Step 2: Convert to fraction form
    289,782.06/434,636.13 = 112,167.54/x
  3. Step 3: Cross multiply
    289,782.06x = 434,636.13 × 112,167.54
  4. Step 4: Simplify right side
    289,782.06x = 48,752,065,497.22
  5. Step 5: Solve for x
    x = 48,752,065,497.22/289,782.06
  6. Step 6: Final answer
    x = 168,237.00

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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.