Home / 308,824.08-426,141.42-172,865.64

Finding the Fourth Proportional to 308,824.08, 426,141.42 and 172,865.64

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Solution

The fourth proportional to 308,824.08, 426,141.42 and 172,865.64 is: 238,534.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,824.08 : 426,141.42 = 172,865.64 : x
  2. Step 2: Convert to fraction form
    308,824.08/426,141.42 = 172,865.64/x
  3. Step 3: Cross multiply
    308,824.08x = 426,141.42 × 172,865.64
  4. Step 4: Simplify right side
    308,824.08x = 73,665,209,298.81
  5. Step 5: Solve for x
    x = 73,665,209,298.81/308,824.08
  6. Step 6: Final answer
    x = 238,534.54

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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.