Home / 256,493.07-353,959.70-143,315.91

Finding the Fourth Proportional to 256,493.07, 353,959.70 and 143,315.91

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Solution

The fourth proportional to 256,493.07, 353,959.70 and 143,315.91 is: 197,775.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,493.07 : 353,959.70 = 143,315.91 : x
  2. Step 2: Convert to fraction form
    256,493.07/353,959.70 = 143,315.91/x
  3. Step 3: Cross multiply
    256,493.07x = 353,959.70 × 143,315.91
  4. Step 4: Simplify right side
    256,493.07x = 50,728,055,792.25
  5. Step 5: Solve for x
    x = 50,728,055,792.25/256,493.07
  6. Step 6: Final answer
    x = 197,775.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.