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Finding the Fourth Proportional to 301,215.66, 451,529.73 and 143,401.74

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Solution

The fourth proportional to 301,215.66, 451,529.73 and 143,401.74 is: 214,962.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,215.66 : 451,529.73 = 143,401.74 : x
  2. Step 2: Convert to fraction form
    301,215.66/451,529.73 = 143,401.74/x
  3. Step 3: Cross multiply
    301,215.66x = 451,529.73 × 143,401.74
  4. Step 4: Simplify right side
    301,215.66x = 64,750,148,943.73
  5. Step 5: Solve for x
    x = 64,750,148,943.73/301,215.66
  6. Step 6: Final answer
    x = 214,962.76

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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.