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Finding the Fourth Proportional to 351,802.35, 485,539.36 and 222,752.82

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Solution

The fourth proportional to 351,802.35, 485,539.36 and 222,752.82 is: 307,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,802.35 : 485,539.36 = 222,752.82 : x
  2. Step 2: Convert to fraction form
    351,802.35/485,539.36 = 222,752.82/x
  3. Step 3: Cross multiply
    351,802.35x = 485,539.36 × 222,752.82
  4. Step 4: Simplify right side
    351,802.35x = 108,155,261,661.00
  5. Step 5: Solve for x
    x = 108,155,261,661.00/351,802.35
  6. Step 6: Final answer
    x = 307,431.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.