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Finding the Fourth Proportional to 313,880.65, 470,749.98 and 89,236.10

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Solution

The fourth proportional to 313,880.65, 470,749.98 and 89,236.10 is: 133,833.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,880.65 : 470,749.98 = 89,236.10 : x
  2. Step 2: Convert to fraction form
    313,880.65/470,749.98 = 89,236.10/x
  3. Step 3: Cross multiply
    313,880.65x = 470,749.98 × 89,236.10
  4. Step 4: Simplify right side
    313,880.65x = 42,007,892,290.28
  5. Step 5: Solve for x
    x = 42,007,892,290.28/313,880.65
  6. Step 6: Final answer
    x = 133,833.97

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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.