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Finding the Fourth Proportional to 371,704.12, 512,962.18 and 210,559.12

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Solution

The fourth proportional to 371,704.12, 512,962.18 and 210,559.12 is: 290,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,704.12 : 512,962.18 = 210,559.12 : x
  2. Step 2: Convert to fraction form
    371,704.12/512,962.18 = 210,559.12/x
  3. Step 3: Cross multiply
    371,704.12x = 512,962.18 × 210,559.12
  4. Step 4: Simplify right side
    371,704.12x = 108,008,863,405.28
  5. Step 5: Solve for x
    x = 108,008,863,405.28/371,704.12
  6. Step 6: Final answer
    x = 290,577.53

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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.