Home / 197,739.21-296,477.59-138,646.47

Finding the Fourth Proportional to 197,739.21, 296,477.59 and 138,646.47

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Solution

The fourth proportional to 197,739.21, 296,477.59 and 138,646.47 is: 207,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,739.21 : 296,477.59 = 138,646.47 : x
  2. Step 2: Convert to fraction form
    197,739.21/296,477.59 = 138,646.47/x
  3. Step 3: Cross multiply
    197,739.21x = 296,477.59 × 138,646.47
  4. Step 4: Simplify right side
    197,739.21x = 41,105,571,287.61
  5. Step 5: Solve for x
    x = 41,105,571,287.61/197,739.21
  6. Step 6: Final answer
    x = 207,877.70

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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.