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Finding the Fourth Proportional to 371,399.99, 512,538.03 and 210,250.89

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Solution

The fourth proportional to 371,399.99, 512,538.03 and 210,250.89 is: 290,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,399.99 : 512,538.03 = 210,250.89 : x
  2. Step 2: Convert to fraction form
    371,399.99/512,538.03 = 210,250.89/x
  3. Step 3: Cross multiply
    371,399.99x = 512,538.03 × 210,250.89
  4. Step 4: Simplify right side
    371,399.99x = 107,761,576,966.35
  5. Step 5: Solve for x
    x = 107,761,576,966.35/371,399.99
  6. Step 6: Final answer
    x = 290,149.65

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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.