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Finding the Fourth Proportional to 291,441.65, 402,190.31 and 168,957.90

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Solution

The fourth proportional to 291,441.65, 402,190.31 and 168,957.90 is: 233,162.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,441.65 : 402,190.31 = 168,957.90 : x
  2. Step 2: Convert to fraction form
    291,441.65/402,190.31 = 168,957.90/x
  3. Step 3: Cross multiply
    291,441.65x = 402,190.31 × 168,957.90
  4. Step 4: Simplify right side
    291,441.65x = 67,953,230,600.34
  5. Step 5: Solve for x
    x = 67,953,230,600.34/291,441.65
  6. Step 6: Final answer
    x = 233,162.39

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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.