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Finding the Fourth Proportional to 322,987.60, 483,606.60 and 253,003.60

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Solution

The fourth proportional to 322,987.60, 483,606.60 and 253,003.60 is: 378,820.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,987.60 : 483,606.60 = 253,003.60 : x
  2. Step 2: Convert to fraction form
    322,987.60/483,606.60 = 253,003.60/x
  3. Step 3: Cross multiply
    322,987.60x = 483,606.60 × 253,003.60
  4. Step 4: Simplify right side
    322,987.60x = 122,354,210,783.76
  5. Step 5: Solve for x
    x = 122,354,210,783.76/322,987.60
  6. Step 6: Final answer
    x = 378,820.15

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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.