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Finding the Fourth Proportional to 432,491.22, 648,969.48 and 179,946

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Solution

The fourth proportional to 432,491.22, 648,969.48 and 179,946 is: 270,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,491.22 : 648,969.48 = 179,946 : x
  2. Step 2: Convert to fraction form
    432,491.22/648,969.48 = 179,946/x
  3. Step 3: Cross multiply
    432,491.22x = 648,969.48 × 179,946
  4. Step 4: Simplify right side
    432,491.22x = 116,779,462,048.08
  5. Step 5: Solve for x
    x = 116,779,462,048.08/432,491.22
  6. Step 6: Final answer
    x = 270,015.80

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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.