Home / 256,328.91-353,732.78-141,607.55

Finding the Fourth Proportional to 256,328.91, 353,732.78 and 141,607.55

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Solution

The fourth proportional to 256,328.91, 353,732.78 and 141,607.55 is: 195,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,328.91 : 353,732.78 = 141,607.55 : x
  2. Step 2: Convert to fraction form
    256,328.91/353,732.78 = 141,607.55/x
  3. Step 3: Cross multiply
    256,328.91x = 353,732.78 × 141,607.55
  4. Step 4: Simplify right side
    256,328.91x = 50,091,233,568.84
  5. Step 5: Solve for x
    x = 50,091,233,568.84/256,328.91
  6. Step 6: Final answer
    x = 195,417.81

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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.