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Finding the Fourth Proportional to 305,037.17, 420,940.42 and 169,083.83

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Solution

The fourth proportional to 305,037.17, 420,940.42 and 169,083.83 is: 233,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,037.17 : 420,940.42 = 169,083.83 : x
  2. Step 2: Convert to fraction form
    305,037.17/420,940.42 = 169,083.83/x
  3. Step 3: Cross multiply
    305,037.17x = 420,940.42 × 169,083.83
  4. Step 4: Simplify right side
    305,037.17x = 71,174,218,415.41
  5. Step 5: Solve for x
    x = 71,174,218,415.41/305,037.17
  6. Step 6: Final answer
    x = 233,329.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.