Home / 308,083.45-425,113.09-172,100.58

Finding the Fourth Proportional to 308,083.45, 425,113.09 and 172,100.58

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Solution

The fourth proportional to 308,083.45, 425,113.09 and 172,100.58 is: 237,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,083.45 : 425,113.09 = 172,100.58 : x
  2. Step 2: Convert to fraction form
    308,083.45/425,113.09 = 172,100.58/x
  3. Step 3: Cross multiply
    308,083.45x = 425,113.09 × 172,100.58
  4. Step 4: Simplify right side
    308,083.45x = 73,162,209,354.59
  5. Step 5: Solve for x
    x = 73,162,209,354.59/308,083.45
  6. Step 6: Final answer
    x = 237,475.30

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1.5x scale

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.