Home / 254,820.63-382,221.23-77,320.47

Finding the Fourth Proportional to 254,820.63, 382,221.23 and 77,320.47

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Solution

The fourth proportional to 254,820.63, 382,221.23 and 77,320.47 is: 115,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,820.63 : 382,221.23 = 77,320.47 : x
  2. Step 2: Convert to fraction form
    254,820.63/382,221.23 = 77,320.47/x
  3. Step 3: Cross multiply
    254,820.63x = 382,221.23 × 77,320.47
  4. Step 4: Simplify right side
    254,820.63x = 29,553,526,194.31
  5. Step 5: Solve for x
    x = 29,553,526,194.31/254,820.63
  6. Step 6: Final answer
    x = 115,977.76

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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.