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Finding the Fourth Proportional to 316,010.99, 436,095.21 and 172,771.07

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Solution

The fourth proportional to 316,010.99, 436,095.21 and 172,771.07 is: 238,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,010.99 : 436,095.21 = 172,771.07 : x
  2. Step 2: Convert to fraction form
    316,010.99/436,095.21 = 172,771.07/x
  3. Step 3: Cross multiply
    316,010.99x = 436,095.21 × 172,771.07
  4. Step 4: Simplify right side
    316,010.99x = 75,344,633,873.10
  5. Step 5: Solve for x
    x = 75,344,633,873.10/316,010.99
  6. Step 6: Final answer
    x = 238,424.10

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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.