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Finding the Fourth Proportional to 220,955, 330,814.98 and 119,389.24

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Solution

The fourth proportional to 220,955, 330,814.98 and 119,389.24 is: 178,750.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,955 : 330,814.98 = 119,389.24 : x
  2. Step 2: Convert to fraction form
    220,955/330,814.98 = 119,389.24/x
  3. Step 3: Cross multiply
    220,955x = 330,814.98 × 119,389.24
  4. Step 4: Simplify right side
    220,955x = 39,495,749,042.82
  5. Step 5: Solve for x
    x = 39,495,749,042.82/220,955
  6. Step 6: Final answer
    x = 178,750.19

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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.