Home / 308,085.45-425,115.84-172,102.59

Finding the Fourth Proportional to 308,085.45, 425,115.84 and 172,102.59

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Solution

The fourth proportional to 308,085.45, 425,115.84 and 172,102.59 is: 237,478.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,085.45 : 425,115.84 = 172,102.59 : x
  2. Step 2: Convert to fraction form
    308,085.45/425,115.84 = 172,102.59/x
  3. Step 3: Cross multiply
    308,085.45x = 425,115.84 × 172,102.59
  4. Step 4: Simplify right side
    308,085.45x = 73,163,537,114.03
  5. Step 5: Solve for x
    x = 73,163,537,114.03/308,085.45
  6. Step 6: Final answer
    x = 237,478.07

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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.