Home / 256,731.42-384,984.66-121,833.92

Finding the Fourth Proportional to 256,731.42, 384,984.66 and 121,833.92

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Solution

The fourth proportional to 256,731.42, 384,984.66 and 121,833.92 is: 182,697.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,731.42 : 384,984.66 = 121,833.92 : x
  2. Step 2: Convert to fraction form
    256,731.42/384,984.66 = 121,833.92/x
  3. Step 3: Cross multiply
    256,731.42x = 384,984.66 × 121,833.92
  4. Step 4: Simplify right side
    256,731.42x = 46,904,190,267.67
  5. Step 5: Solve for x
    x = 46,904,190,267.67/256,731.42
  6. Step 6: Final answer
    x = 182,697.51

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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.