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Finding the Fourth Proportional to 214,645.60, 322,083.60 and 89,999.20

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Solution

The fourth proportional to 214,645.60, 322,083.60 and 89,999.20 is: 135,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,645.60 : 322,083.60 = 89,999.20 : x
  2. Step 2: Convert to fraction form
    214,645.60/322,083.60 = 89,999.20/x
  3. Step 3: Cross multiply
    214,645.60x = 322,083.60 × 89,999.20
  4. Step 4: Simplify right side
    214,645.60x = 28,987,266,333.12
  5. Step 5: Solve for x
    x = 28,987,266,333.12/214,645.60
  6. Step 6: Final answer
    x = 135,047.10

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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.