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Finding the Fourth Proportional to 323,749.70, 485,624.55 and 102,133.70

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Solution

The fourth proportional to 323,749.70, 485,624.55 and 102,133.70 is: 153,200.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,749.70 : 485,624.55 = 102,133.70 : x
  2. Step 2: Convert to fraction form
    323,749.70/485,624.55 = 102,133.70/x
  3. Step 3: Cross multiply
    323,749.70x = 485,624.55 × 102,133.70
  4. Step 4: Simplify right side
    323,749.70x = 49,598,632,102.34
  5. Step 5: Solve for x
    x = 49,598,632,102.34/323,749.70
  6. Step 6: Final answer
    x = 153,200.55

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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.