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Finding the Fourth Proportional to 445,887.34, 668,829.17 and 161,511.35

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Solution

The fourth proportional to 445,887.34, 668,829.17 and 161,511.35 is: 242,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,887.34 : 668,829.17 = 161,511.35 : x
  2. Step 2: Convert to fraction form
    445,887.34/668,829.17 = 161,511.35/x
  3. Step 3: Cross multiply
    445,887.34x = 668,829.17 × 161,511.35
  4. Step 4: Simplify right side
    445,887.34x = 108,023,499,225.71
  5. Step 5: Solve for x
    x = 108,023,499,225.71/445,887.34
  6. Step 6: Final answer
    x = 242,266.35

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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.