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Finding the Fourth Proportional to 253,982.90, 355,109.50 and 253,982.90

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Solution

The fourth proportional to 253,982.90, 355,109.50 and 253,982.90 is: 355,109.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,982.90 : 355,109.50 = 253,982.90 : x
  2. Step 2: Convert to fraction form
    253,982.90/355,109.50 = 253,982.90/x
  3. Step 3: Cross multiply
    253,982.90x = 355,109.50 × 253,982.90
  4. Step 4: Simplify right side
    253,982.90x = 90,191,740,627.55
  5. Step 5: Solve for x
    x = 90,191,740,627.55/253,982.90
  6. Step 6: Final answer
    x = 355,109.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.