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Finding the Fourth Proportional to 305,989.80, 458,985.06 and 95,628.84

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Solution

The fourth proportional to 305,989.80, 458,985.06 and 95,628.84 is: 143,443.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,989.80 : 458,985.06 = 95,628.84 : x
  2. Step 2: Convert to fraction form
    305,989.80/458,985.06 = 95,628.84/x
  3. Step 3: Cross multiply
    305,989.80x = 458,985.06 × 95,628.84
  4. Step 4: Simplify right side
    305,989.80x = 43,892,208,865.13
  5. Step 5: Solve for x
    x = 43,892,208,865.13/305,989.80
  6. Step 6: Final answer
    x = 143,443.37

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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.