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Finding the Fourth Proportional to 349,205.93, 481,907.35 and 211,388.03

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Solution

The fourth proportional to 349,205.93, 481,907.35 and 211,388.03 is: 291,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,205.93 : 481,907.35 = 211,388.03 : x
  2. Step 2: Convert to fraction form
    349,205.93/481,907.35 = 211,388.03/x
  3. Step 3: Cross multiply
    349,205.93x = 481,907.35 × 211,388.03
  4. Step 4: Simplify right side
    349,205.93x = 101,869,445,359.02
  5. Step 5: Solve for x
    x = 101,869,445,359.02/349,205.93
  6. Step 6: Final answer
    x = 291,717.40

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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.