Home / 371,635.20-512,856.48-201,869.16

Finding the Fourth Proportional to 371,635.20, 512,856.48 and 201,869.16

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Solution

The fourth proportional to 371,635.20, 512,856.48 and 201,869.16 is: 278,579.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,635.20 : 512,856.48 = 201,869.16 : x
  2. Step 2: Convert to fraction form
    371,635.20/512,856.48 = 201,869.16/x
  3. Step 3: Cross multiply
    371,635.20x = 512,856.48 × 201,869.16
  4. Step 4: Simplify right side
    371,635.20x = 103,529,906,818.16
  5. Step 5: Solve for x
    x = 103,529,906,818.16/371,635.20
  6. Step 6: Final answer
    x = 278,579.39

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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.