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Finding the Fourth Proportional to 357,346.62, 539,262.22 and 345,449.34

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Solution

The fourth proportional to 357,346.62, 539,262.22 and 345,449.34 is: 521,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,346.62 : 539,262.22 = 345,449.34 : x
  2. Step 2: Convert to fraction form
    357,346.62/539,262.22 = 345,449.34/x
  3. Step 3: Cross multiply
    357,346.62x = 539,262.22 × 345,449.34
  4. Step 4: Simplify right side
    357,346.62x = 186,287,777,985.94
  5. Step 5: Solve for x
    x = 186,287,777,985.94/357,346.62
  6. Step 6: Final answer
    x = 521,308.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.