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Finding the Fourth Proportional to 371,777.99, 513,055.33 and 210,664.42

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Solution

The fourth proportional to 371,777.99, 513,055.33 and 210,664.42 is: 290,717.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,777.99 : 513,055.33 = 210,664.42 : x
  2. Step 2: Convert to fraction form
    371,777.99/513,055.33 = 210,664.42/x
  3. Step 3: Cross multiply
    371,777.99x = 513,055.33 × 210,664.42
  4. Step 4: Simplify right side
    371,777.99x = 108,082,501,713.06
  5. Step 5: Solve for x
    x = 108,082,501,713.06/371,777.99
  6. Step 6: Final answer
    x = 290,717.86

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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.