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Finding the Fourth Proportional to 296,844.60, 445,223.70 and 86,460.60

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Solution

The fourth proportional to 296,844.60, 445,223.70 and 86,460.60 is: 129,678.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,844.60 : 445,223.70 = 86,460.60 : x
  2. Step 2: Convert to fraction form
    296,844.60/445,223.70 = 86,460.60/x
  3. Step 3: Cross multiply
    296,844.60x = 445,223.70 × 86,460.60
  4. Step 4: Simplify right side
    296,844.60x = 38,494,308,236.22
  5. Step 5: Solve for x
    x = 38,494,308,236.22/296,844.60
  6. Step 6: Final answer
    x = 129,678.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.