Home / 261,261.74-392,778.48-208,626.14

Finding the Fourth Proportional to 261,261.74, 392,778.48 and 208,626.14

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Solution

The fourth proportional to 261,261.74, 392,778.48 and 208,626.14 is: 313,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,261.74 : 392,778.48 = 208,626.14 : x
  2. Step 2: Convert to fraction form
    261,261.74/392,778.48 = 208,626.14/x
  3. Step 3: Cross multiply
    261,261.74x = 392,778.48 × 208,626.14
  4. Step 4: Simplify right side
    261,261.74x = 81,943,858,157.47
  5. Step 5: Solve for x
    x = 81,943,858,157.47/261,261.74
  6. Step 6: Final answer
    x = 313,646.61

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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.