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Finding the Fourth Proportional to 363,558.78, 545,272.50 and 126,969.12

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Solution

The fourth proportional to 363,558.78, 545,272.50 and 126,969.12 is: 190,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,558.78 : 545,272.50 = 126,969.12 : x
  2. Step 2: Convert to fraction form
    363,558.78/545,272.50 = 126,969.12/x
  3. Step 3: Cross multiply
    363,558.78x = 545,272.50 × 126,969.12
  4. Step 4: Simplify right side
    363,558.78x = 69,232,766,758.84
  5. Step 5: Solve for x
    x = 69,232,766,758.84/363,558.78
  6. Step 6: Final answer
    x = 190,430.74

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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.