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Finding the Fourth Proportional to 371,575.53, 512,757.07 and 210,431.73

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Solution

The fourth proportional to 371,575.53, 512,757.07 and 210,431.73 is: 290,386.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,575.53 : 512,757.07 = 210,431.73 : x
  2. Step 2: Convert to fraction form
    371,575.53/512,757.07 = 210,431.73/x
  3. Step 3: Cross multiply
    371,575.53x = 512,757.07 × 210,431.73
  4. Step 4: Simplify right side
    371,575.53x = 107,900,359,117.80
  5. Step 5: Solve for x
    x = 107,900,359,117.80/371,575.53
  6. Step 6: Final answer
    x = 290,386.07

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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.