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Finding the Fourth Proportional to 312,362.08, 468,543.13 and 75,704.76

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Solution

The fourth proportional to 312,362.08, 468,543.13 and 75,704.76 is: 113,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,362.08 : 468,543.13 = 75,704.76 : x
  2. Step 2: Convert to fraction form
    312,362.08/468,543.13 = 75,704.76/x
  3. Step 3: Cross multiply
    312,362.08x = 468,543.13 × 75,704.76
  4. Step 4: Simplify right side
    312,362.08x = 35,470,946,749.50
  5. Step 5: Solve for x
    x = 35,470,946,749.50/312,362.08
  6. Step 6: Final answer
    x = 113,557.15

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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.