Home / 256,438.07-353,885.61-140,153.88

Finding the Fourth Proportional to 256,438.07, 353,885.61 and 140,153.88

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Solution

The fourth proportional to 256,438.07, 353,885.61 and 140,153.88 is: 193,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,438.07 : 353,885.61 = 140,153.88 : x
  2. Step 2: Convert to fraction form
    256,438.07/353,885.61 = 140,153.88/x
  3. Step 3: Cross multiply
    256,438.07x = 353,885.61 × 140,153.88
  4. Step 4: Simplify right side
    256,438.07x = 49,598,441,317.67
  5. Step 5: Solve for x
    x = 49,598,441,317.67/256,438.07
  6. Step 6: Final answer
    x = 193,412.94

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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.