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Finding the Fourth Proportional to 345,907.10, 519,079.35 and 203,752.10

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Solution

The fourth proportional to 345,907.10, 519,079.35 and 203,752.10 is: 305,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,907.10 : 519,079.35 = 203,752.10 : x
  2. Step 2: Convert to fraction form
    345,907.10/519,079.35 = 203,752.10/x
  3. Step 3: Cross multiply
    345,907.10x = 519,079.35 × 203,752.10
  4. Step 4: Simplify right side
    345,907.10x = 105,763,507,629.14
  5. Step 5: Solve for x
    x = 105,763,507,629.14/345,907.10
  6. Step 6: Final answer
    x = 305,756.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.