Home / 221,084.03-305,145.16-140,495.82

Finding the Fourth Proportional to 221,084.03, 305,145.16 and 140,495.82

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Solution

The fourth proportional to 221,084.03, 305,145.16 and 140,495.82 is: 193,915.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,084.03 : 305,145.16 = 140,495.82 : x
  2. Step 2: Convert to fraction form
    221,084.03/305,145.16 = 140,495.82/x
  3. Step 3: Cross multiply
    221,084.03x = 305,145.16 × 140,495.82
  4. Step 4: Simplify right side
    221,084.03x = 42,871,617,977.70
  5. Step 5: Solve for x
    x = 42,871,617,977.70/221,084.03
  6. Step 6: Final answer
    x = 193,915.49

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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.