Home / 291,945.91-402,895.31-169,428.86

Finding the Fourth Proportional to 291,945.91, 402,895.31 and 169,428.86

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Solution

The fourth proportional to 291,945.91, 402,895.31 and 169,428.86 is: 233,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,945.91 : 402,895.31 = 169,428.86 : x
  2. Step 2: Convert to fraction form
    291,945.91/402,895.31 = 169,428.86/x
  3. Step 3: Cross multiply
    291,945.91x = 402,895.31 × 169,428.86
  4. Step 4: Simplify right side
    291,945.91x = 68,262,093,072.65
  5. Step 5: Solve for x
    x = 68,262,093,072.65/291,945.91
  6. Step 6: Final answer
    x = 233,817.60

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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.