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Finding the Fourth Proportional to 253,350.70, 380,026.05 and 103,492.60

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Solution

The fourth proportional to 253,350.70, 380,026.05 and 103,492.60 is: 155,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,350.70 : 380,026.05 = 103,492.60 : x
  2. Step 2: Convert to fraction form
    253,350.70/380,026.05 = 103,492.60/x
  3. Step 3: Cross multiply
    253,350.70x = 380,026.05 × 103,492.60
  4. Step 4: Simplify right side
    253,350.70x = 39,329,883,982.23
  5. Step 5: Solve for x
    x = 39,329,883,982.23/253,350.70
  6. Step 6: Final answer
    x = 155,238.90

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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.