Home / 293,572.05-405,122.56-172,721.11

Finding the Fourth Proportional to 293,572.05, 405,122.56 and 172,721.11

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Solution

The fourth proportional to 293,572.05, 405,122.56 and 172,721.11 is: 238,351.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,572.05 : 405,122.56 = 172,721.11 : x
  2. Step 2: Convert to fraction form
    293,572.05/405,122.56 = 172,721.11/x
  3. Step 3: Cross multiply
    293,572.05x = 405,122.56 × 172,721.11
  4. Step 4: Simplify right side
    293,572.05x = 69,973,215,360.02
  5. Step 5: Solve for x
    x = 69,973,215,360.02/293,572.05
  6. Step 6: Final answer
    x = 238,351.08

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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.