Home / 339,743.08-509,688.67-103,104.28

Finding the Fourth Proportional to 339,743.08, 509,688.67 and 103,104.28

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Solution

The fourth proportional to 339,743.08, 509,688.67 and 103,104.28 is: 154,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,743.08 : 509,688.67 = 103,104.28 : x
  2. Step 2: Convert to fraction form
    339,743.08/509,688.67 = 103,104.28/x
  3. Step 3: Cross multiply
    339,743.08x = 509,688.67 × 103,104.28
  4. Step 4: Simplify right side
    339,743.08x = 52,551,083,344.51
  5. Step 5: Solve for x
    x = 52,551,083,344.51/339,743.08
  6. Step 6: Final answer
    x = 154,678.89

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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.