Home / 256,230.07-384,579.45-129,957.48

Finding the Fourth Proportional to 256,230.07, 384,579.45 and 129,957.48

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Solution

The fourth proportional to 256,230.07, 384,579.45 and 129,957.48 is: 195,055.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,230.07 : 384,579.45 = 129,957.48 : x
  2. Step 2: Convert to fraction form
    256,230.07/384,579.45 = 129,957.48/x
  3. Step 3: Cross multiply
    256,230.07x = 384,579.45 × 129,957.48
  4. Step 4: Simplify right side
    256,230.07x = 49,978,976,181.79
  5. Step 5: Solve for x
    x = 49,978,976,181.79/256,230.07
  6. Step 6: Final answer
    x = 195,055.08

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1.5x scale

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.