Home / 253,371.08-380,083.32-103,587.56

Finding the Fourth Proportional to 253,371.08, 380,083.32 and 103,587.56

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Solution

The fourth proportional to 253,371.08, 380,083.32 and 103,587.56 is: 155,392.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,371.08 : 380,083.32 = 103,587.56 : x
  2. Step 2: Convert to fraction form
    253,371.08/380,083.32 = 103,587.56/x
  3. Step 3: Cross multiply
    253,371.08x = 380,083.32 × 103,587.56
  4. Step 4: Simplify right side
    253,371.08x = 39,371,903,715.50
  5. Step 5: Solve for x
    x = 39,371,903,715.50/253,371.08
  6. Step 6: Final answer
    x = 155,392.26

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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.