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Finding the Fourth Proportional to 231,603.20, 347,145.60 and 98,460.80

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Solution

The fourth proportional to 231,603.20, 347,145.60 and 98,460.80 is: 147,581.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,603.20 : 347,145.60 = 98,460.80 : x
  2. Step 2: Convert to fraction form
    231,603.20/347,145.60 = 98,460.80/x
  3. Step 3: Cross multiply
    231,603.20x = 347,145.60 × 98,460.80
  4. Step 4: Simplify right side
    231,603.20x = 34,180,233,492.48
  5. Step 5: Solve for x
    x = 34,180,233,492.48/231,603.20
  6. Step 6: Final answer
    x = 147,581.01

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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.