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Finding the Fourth Proportional to 295,448.64, 407,718.96 and 161,312.64

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Solution

The fourth proportional to 295,448.64, 407,718.96 and 161,312.64 is: 222,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,448.64 : 407,718.96 = 161,312.64 : x
  2. Step 2: Convert to fraction form
    295,448.64/407,718.96 = 161,312.64/x
  3. Step 3: Cross multiply
    295,448.64x = 407,718.96 × 161,312.64
  4. Step 4: Simplify right side
    295,448.64x = 65,770,221,815.65
  5. Step 5: Solve for x
    x = 65,770,221,815.65/295,448.64
  6. Step 6: Final answer
    x = 222,611.35

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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.