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Finding the Fourth Proportional to 371,037.92, 512,032.46 and 209,889.56

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Solution

The fourth proportional to 371,037.92, 512,032.46 and 209,889.56 is: 289,647.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,037.92 : 512,032.46 = 209,889.56 : x
  2. Step 2: Convert to fraction form
    371,037.92/512,032.46 = 209,889.56/x
  3. Step 3: Cross multiply
    371,037.92x = 512,032.46 × 209,889.56
  4. Step 4: Simplify right side
    371,037.92x = 107,470,267,965.75
  5. Step 5: Solve for x
    x = 107,470,267,965.75/371,037.92
  6. Step 6: Final answer
    x = 289,647.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.