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Finding the Fourth Proportional to 245,903.29, 339,363.84 and 137,014.69

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Solution

The fourth proportional to 245,903.29, 339,363.84 and 137,014.69 is: 189,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,903.29 : 339,363.84 = 137,014.69 : x
  2. Step 2: Convert to fraction form
    245,903.29/339,363.84 = 137,014.69/x
  3. Step 3: Cross multiply
    245,903.29x = 339,363.84 × 137,014.69
  4. Step 4: Simplify right side
    245,903.29x = 46,497,830,992.27
  5. Step 5: Solve for x
    x = 46,497,830,992.27/245,903.29
  6. Step 6: Final answer
    x = 189,089.91

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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.