Home / 257,729.01-386,649.14-77,799.54

Finding the Fourth Proportional to 257,729.01, 386,649.14 and 77,799.54

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Solution

The fourth proportional to 257,729.01, 386,649.14 and 77,799.54 is: 116,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,729.01 : 386,649.14 = 77,799.54 : x
  2. Step 2: Convert to fraction form
    257,729.01/386,649.14 = 77,799.54/x
  3. Step 3: Cross multiply
    257,729.01x = 386,649.14 × 77,799.54
  4. Step 4: Simplify right side
    257,729.01x = 30,081,124,844.40
  5. Step 5: Solve for x
    x = 30,081,124,844.40/257,729.01
  6. Step 6: Final answer
    x = 116,716.10

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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.