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Finding the Fourth Proportional to 371,497.76, 512,665.44 and 210,363.92

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Solution

The fourth proportional to 371,497.76, 512,665.44 and 210,363.92 is: 290,301.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,497.76 : 512,665.44 = 210,363.92 : x
  2. Step 2: Convert to fraction form
    371,497.76/512,665.44 = 210,363.92/x
  3. Step 3: Cross multiply
    371,497.76x = 512,665.44 × 210,363.92
  4. Step 4: Simplify right side
    371,497.76x = 107,846,311,606.93
  5. Step 5: Solve for x
    x = 107,846,311,606.93/371,497.76
  6. Step 6: Final answer
    x = 290,301.38

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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.