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Finding the Fourth Proportional to 305,880.60, 458,820.90 and 95,539.80

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Solution

The fourth proportional to 305,880.60, 458,820.90 and 95,539.80 is: 143,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,880.60 : 458,820.90 = 95,539.80 : x
  2. Step 2: Convert to fraction form
    305,880.60/458,820.90 = 95,539.80/x
  3. Step 3: Cross multiply
    305,880.60x = 458,820.90 × 95,539.80
  4. Step 4: Simplify right side
    305,880.60x = 43,835,657,021.82
  5. Step 5: Solve for x
    x = 43,835,657,021.82/305,880.60
  6. Step 6: Final answer
    x = 143,309.70

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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.