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Finding the Fourth Proportional to 301,563.88, 451,656.86 and 143,903.06

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Solution

The fourth proportional to 301,563.88, 451,656.86 and 143,903.06 is: 215,525.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,563.88 : 451,656.86 = 143,903.06 : x
  2. Step 2: Convert to fraction form
    301,563.88/451,656.86 = 143,903.06/x
  3. Step 3: Cross multiply
    301,563.88x = 451,656.86 × 143,903.06
  4. Step 4: Simplify right side
    301,563.88x = 64,994,804,223.99
  5. Step 5: Solve for x
    x = 64,994,804,223.99/301,563.88
  6. Step 6: Final answer
    x = 215,525.83

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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.