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Finding the Fourth Proportional to 192,041.20, 287,405.70 and 168,421.60

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Solution

The fourth proportional to 192,041.20, 287,405.70 and 168,421.60 is: 252,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,041.20 : 287,405.70 = 168,421.60 : x
  2. Step 2: Convert to fraction form
    192,041.20/287,405.70 = 168,421.60/x
  3. Step 3: Cross multiply
    192,041.20x = 287,405.70 × 168,421.60
  4. Step 4: Simplify right side
    192,041.20x = 48,405,327,843.12
  5. Step 5: Solve for x
    x = 48,405,327,843.12/192,041.20
  6. Step 6: Final answer
    x = 252,057.00

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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.