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Finding the Fourth Proportional to 296,957.97, 445,225.41 and 139,100.31

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Solution

The fourth proportional to 296,957.97, 445,225.41 and 139,100.31 is: 208,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,957.97 : 445,225.41 = 139,100.31 : x
  2. Step 2: Convert to fraction form
    296,957.97/445,225.41 = 139,100.31/x
  3. Step 3: Cross multiply
    296,957.97x = 445,225.41 × 139,100.31
  4. Step 4: Simplify right side
    296,957.97x = 61,930,992,550.88
  5. Step 5: Solve for x
    x = 61,930,992,550.88/296,957.97
  6. Step 6: Final answer
    x = 208,551.37

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1.5x scale

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.