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Finding the Fourth Proportional to 168,021.60, 252,032.40 and 155,191.20

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Solution

The fourth proportional to 168,021.60, 252,032.40 and 155,191.20 is: 232,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,021.60 : 252,032.40 = 155,191.20 : x
  2. Step 2: Convert to fraction form
    168,021.60/252,032.40 = 155,191.20/x
  3. Step 3: Cross multiply
    168,021.60x = 252,032.40 × 155,191.20
  4. Step 4: Simplify right side
    168,021.60x = 39,113,210,594.88
  5. Step 5: Solve for x
    x = 39,113,210,594.88/168,021.60
  6. Step 6: Final answer
    x = 232,786.80

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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.