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Finding the Fourth Proportional to 168,005.60, 252,008.40 and 155,175.20

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Solution

The fourth proportional to 168,005.60, 252,008.40 and 155,175.20 is: 232,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,005.60 : 252,008.40 = 155,175.20 : x
  2. Step 2: Convert to fraction form
    168,005.60/252,008.40 = 155,175.20/x
  3. Step 3: Cross multiply
    168,005.60x = 252,008.40 × 155,175.20
  4. Step 4: Simplify right side
    168,005.60x = 39,105,453,871.68
  5. Step 5: Solve for x
    x = 39,105,453,871.68/168,005.60
  6. Step 6: Final answer
    x = 232,762.80

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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.