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Finding the Fourth Proportional to 215,254.40, 322,881.60 and 205,577.60

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Solution

The fourth proportional to 215,254.40, 322,881.60 and 205,577.60 is: 308,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,254.40 : 322,881.60 = 205,577.60 : x
  2. Step 2: Convert to fraction form
    215,254.40/322,881.60 = 205,577.60/x
  3. Step 3: Cross multiply
    215,254.40x = 322,881.60 × 205,577.60
  4. Step 4: Simplify right side
    215,254.40x = 66,377,224,412.16
  5. Step 5: Solve for x
    x = 66,377,224,412.16/215,254.40
  6. Step 6: Final answer
    x = 308,366.40

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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.