Home / 257,100.74-385,588.16-107,342.26

Finding the Fourth Proportional to 257,100.74, 385,588.16 and 107,342.26

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Solution

The fourth proportional to 257,100.74, 385,588.16 and 107,342.26 is: 160,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,100.74 : 385,588.16 = 107,342.26 : x
  2. Step 2: Convert to fraction form
    257,100.74/385,588.16 = 107,342.26/x
  3. Step 3: Cross multiply
    257,100.74x = 385,588.16 × 107,342.26
  4. Step 4: Simplify right side
    257,100.74x = 41,389,904,523.64
  5. Step 5: Solve for x
    x = 41,389,904,523.64/257,100.74
  6. Step 6: Final answer
    x = 160,987.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.