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Finding the Fourth Proportional to 305,885.50, 458,356.68 and 163,749.64

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Solution

The fourth proportional to 305,885.50, 458,356.68 and 163,749.64 is: 245,372.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,885.50 : 458,356.68 = 163,749.64 : x
  2. Step 2: Convert to fraction form
    305,885.50/458,356.68 = 163,749.64/x
  3. Step 3: Cross multiply
    305,885.50x = 458,356.68 × 163,749.64
  4. Step 4: Simplify right side
    305,885.50x = 75,055,738,722.22
  5. Step 5: Solve for x
    x = 75,055,738,722.22/305,885.50
  6. Step 6: Final answer
    x = 245,372.01

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1.5x scale

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.