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Finding the Fourth Proportional to 395,037.95, 545,150.86 and 213,750.23

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Solution

The fourth proportional to 395,037.95, 545,150.86 and 213,750.23 is: 294,974.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,037.95 : 545,150.86 = 213,750.23 : x
  2. Step 2: Convert to fraction form
    395,037.95/545,150.86 = 213,750.23/x
  3. Step 3: Cross multiply
    395,037.95x = 545,150.86 × 213,750.23
  4. Step 4: Simplify right side
    395,037.95x = 116,526,118,449.57
  5. Step 5: Solve for x
    x = 116,526,118,449.57/395,037.95
  6. Step 6: Final answer
    x = 294,974.50

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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.