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Finding the Fourth Proportional to 315,754.43, 435,720.20 and 179,802.27

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Solution

The fourth proportional to 315,754.43, 435,720.20 and 179,802.27 is: 248,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,754.43 : 435,720.20 = 179,802.27 : x
  2. Step 2: Convert to fraction form
    315,754.43/435,720.20 = 179,802.27/x
  3. Step 3: Cross multiply
    315,754.43x = 435,720.20 × 179,802.27
  4. Step 4: Simplify right side
    315,754.43x = 78,343,480,145.84
  5. Step 5: Solve for x
    x = 78,343,480,145.84/315,754.43
  6. Step 6: Final answer
    x = 248,115.22

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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.