Home / 371,511.12-512,670.84-201,741.36

Finding the Fourth Proportional to 371,511.12, 512,670.84 and 201,741.36

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Solution

The fourth proportional to 371,511.12, 512,670.84 and 201,741.36 is: 278,395.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,511.12 : 512,670.84 = 201,741.36 : x
  2. Step 2: Convert to fraction form
    371,511.12/512,670.84 = 201,741.36/x
  3. Step 3: Cross multiply
    371,511.12x = 512,670.84 × 201,741.36
  4. Step 4: Simplify right side
    371,511.12x = 103,426,912,493.94
  5. Step 5: Solve for x
    x = 103,426,912,493.94/371,511.12
  6. Step 6: Final answer
    x = 278,395.20

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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.