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Finding the Fourth Proportional to 306,190.89, 458,303.63 and 163,679.81

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Solution

The fourth proportional to 306,190.89, 458,303.63 and 163,679.81 is: 244,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,190.89 : 458,303.63 = 163,679.81 : x
  2. Step 2: Convert to fraction form
    306,190.89/458,303.63 = 163,679.81/x
  3. Step 3: Cross multiply
    306,190.89x = 458,303.63 × 163,679.81
  4. Step 4: Simplify right side
    306,190.89x = 75,015,047,970.79
  5. Step 5: Solve for x
    x = 75,015,047,970.79/306,190.89
  6. Step 6: Final answer
    x = 244,994.38

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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.