Home / 245,938.50-339,336.81-138,487.14

Finding the Fourth Proportional to 245,938.50, 339,336.81 and 138,487.14

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Solution

The fourth proportional to 245,938.50, 339,336.81 and 138,487.14 is: 191,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,938.50 : 339,336.81 = 138,487.14 : x
  2. Step 2: Convert to fraction form
    245,938.50/339,336.81 = 138,487.14/x
  3. Step 3: Cross multiply
    245,938.50x = 339,336.81 × 138,487.14
  4. Step 4: Simplify right side
    245,938.50x = 46,993,784,313.62
  5. Step 5: Solve for x
    x = 46,993,784,313.62/245,938.50
  6. Step 6: Final answer
    x = 191,079.41

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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.