Home / 253,900.49-380,289.17-103,685.26

Finding the Fourth Proportional to 253,900.49, 380,289.17 and 103,685.26

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Solution

The fourth proportional to 253,900.49, 380,289.17 and 103,685.26 is: 155,298.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,900.49 : 380,289.17 = 103,685.26 : x
  2. Step 2: Convert to fraction form
    253,900.49/380,289.17 = 103,685.26/x
  3. Step 3: Cross multiply
    253,900.49x = 380,289.17 × 103,685.26
  4. Step 4: Simplify right side
    253,900.49x = 39,430,381,466.63
  5. Step 5: Solve for x
    x = 39,430,381,466.63/253,900.49
  6. Step 6: Final answer
    x = 155,298.56

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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.