Home / 308,285.84-425,429.04-172,322.48

Finding the Fourth Proportional to 308,285.84, 425,429.04 and 172,322.48

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Solution

The fourth proportional to 308,285.84, 425,429.04 and 172,322.48 is: 237,801.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,285.84 : 425,429.04 = 172,322.48 : x
  2. Step 2: Convert to fraction form
    308,285.84/425,429.04 = 172,322.48/x
  3. Step 3: Cross multiply
    308,285.84x = 425,429.04 × 172,322.48
  4. Step 4: Simplify right side
    308,285.84x = 73,310,987,236.82
  5. Step 5: Solve for x
    x = 73,310,987,236.82/308,285.84
  6. Step 6: Final answer
    x = 237,801.99

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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.