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Finding the Fourth Proportional to 424,070.43, 636,104.37 and 171,347.94

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Solution

The fourth proportional to 424,070.43, 636,104.37 and 171,347.94 is: 257,021.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,070.43 : 636,104.37 = 171,347.94 : x
  2. Step 2: Convert to fraction form
    424,070.43/636,104.37 = 171,347.94/x
  3. Step 3: Cross multiply
    424,070.43x = 636,104.37 × 171,347.94
  4. Step 4: Simplify right side
    424,070.43x = 108,995,173,424.50
  5. Step 5: Solve for x
    x = 108,995,173,424.50/424,070.43
  6. Step 6: Final answer
    x = 257,021.39

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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.