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Finding the Fourth Proportional to 352,004, 485,566.80 and 208,623.20

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Solution

The fourth proportional to 352,004, 485,566.80 and 208,623.20 is: 287,782.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,004 : 485,566.80 = 208,623.20 : x
  2. Step 2: Convert to fraction form
    352,004/485,566.80 = 208,623.20/x
  3. Step 3: Cross multiply
    352,004x = 485,566.80 × 208,623.20
  4. Step 4: Simplify right side
    352,004x = 101,300,499,629.76
  5. Step 5: Solve for x
    x = 101,300,499,629.76/352,004
  6. Step 6: Final answer
    x = 287,782.24

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