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Finding the Fourth Proportional to 371,324.56, 512,453.16 and 210,178.96

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Solution

The fourth proportional to 371,324.56, 512,453.16 and 210,178.96 is: 290,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,324.56 : 512,453.16 = 210,178.96 : x
  2. Step 2: Convert to fraction form
    371,324.56/512,453.16 = 210,178.96/x
  3. Step 3: Cross multiply
    371,324.56x = 512,453.16 × 210,178.96
  4. Step 4: Simplify right side
    371,324.56x = 107,706,872,217.51
  5. Step 5: Solve for x
    x = 107,706,872,217.51/371,324.56
  6. Step 6: Final answer
    x = 290,061.27

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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.