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Finding the Fourth Proportional to 308,077.08, 425,104.29 and 172,094.21

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Solution

The fourth proportional to 308,077.08, 425,104.29 and 172,094.21 is: 237,466.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,077.08 : 425,104.29 = 172,094.21 : x
  2. Step 2: Convert to fraction form
    308,077.08/425,104.29 = 172,094.21/x
  3. Step 3: Cross multiply
    308,077.08x = 425,104.29 × 172,094.21
  4. Step 4: Simplify right side
    308,077.08x = 73,157,986,955.16
  5. Step 5: Solve for x
    x = 73,157,986,955.16/308,077.08
  6. Step 6: Final answer
    x = 237,466.50

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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.