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Finding the Fourth Proportional to 339,783.30, 508,855.23 and 268,457.94

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Solution

The fourth proportional to 339,783.30, 508,855.23 and 268,457.94 is: 402,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,783.30 : 508,855.23 = 268,457.94 : x
  2. Step 2: Convert to fraction form
    339,783.30/508,855.23 = 268,457.94/x
  3. Step 3: Cross multiply
    339,783.30x = 508,855.23 × 268,457.94
  4. Step 4: Simplify right side
    339,783.30x = 136,606,226,804.03
  5. Step 5: Solve for x
    x = 136,606,226,804.03/339,783.30
  6. Step 6: Final answer
    x = 402,039.26

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Why These Related Problems?

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