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Finding the Fourth Proportional to 315,239.04, 435,028.56 and 171,997.92

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Solution

The fourth proportional to 315,239.04, 435,028.56 and 171,997.92 is: 237,356.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,239.04 : 435,028.56 = 171,997.92 : x
  2. Step 2: Convert to fraction form
    315,239.04/435,028.56 = 171,997.92/x
  3. Step 3: Cross multiply
    315,239.04x = 435,028.56 × 171,997.92
  4. Step 4: Simplify right side
    315,239.04x = 74,824,007,460.60
  5. Step 5: Solve for x
    x = 74,824,007,460.60/315,239.04
  6. Step 6: Final answer
    x = 237,356.41

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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.