Home / 256,312.78-353,711.37-143,135.62

Finding the Fourth Proportional to 256,312.78, 353,711.37 and 143,135.62

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Solution

The fourth proportional to 256,312.78, 353,711.37 and 143,135.62 is: 197,527.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,312.78 : 353,711.37 = 143,135.62 : x
  2. Step 2: Convert to fraction form
    256,312.78/353,711.37 = 143,135.62/x
  3. Step 3: Cross multiply
    256,312.78x = 353,711.37 × 143,135.62
  4. Step 4: Simplify right side
    256,312.78x = 50,628,696,246.00
  5. Step 5: Solve for x
    x = 50,628,696,246.00/256,312.78
  6. Step 6: Final answer
    x = 197,527.01

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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.