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Finding the Fourth Proportional to 252,140.80, 347,970.80 and 144,745.60

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Solution

The fourth proportional to 252,140.80, 347,970.80 and 144,745.60 is: 199,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,140.80 : 347,970.80 = 144,745.60 : x
  2. Step 2: Convert to fraction form
    252,140.80/347,970.80 = 144,745.60/x
  3. Step 3: Cross multiply
    252,140.80x = 347,970.80 × 144,745.60
  4. Step 4: Simplify right side
    252,140.80x = 50,367,242,228.48
  5. Step 5: Solve for x
    x = 50,367,242,228.48/252,140.80
  6. Step 6: Final answer
    x = 199,758.40

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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.