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Finding the Fourth Proportional to 310,200.90, 434,871.75 and 310,200.90

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Solution

The fourth proportional to 310,200.90, 434,871.75 and 310,200.90 is: 434,871.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,200.90 : 434,871.75 = 310,200.90 : x
  2. Step 2: Convert to fraction form
    310,200.90/434,871.75 = 310,200.90/x
  3. Step 3: Cross multiply
    310,200.90x = 434,871.75 × 310,200.90
  4. Step 4: Simplify right side
    310,200.90x = 134,897,608,234.58
  5. Step 5: Solve for x
    x = 134,897,608,234.58/310,200.90
  6. Step 6: Final answer
    x = 434,871.75

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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.