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Finding the Fourth Proportional to 303,679, 455,794.76 and 161,643.69

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Solution

The fourth proportional to 303,679, 455,794.76 and 161,643.69 is: 242,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,679 : 455,794.76 = 161,643.69 : x
  2. Step 2: Convert to fraction form
    303,679/455,794.76 = 161,643.69/x
  3. Step 3: Cross multiply
    303,679x = 455,794.76 × 161,643.69
  4. Step 4: Simplify right side
    303,679x = 73,676,346,889.06
  5. Step 5: Solve for x
    x = 73,676,346,889.06/303,679
  6. Step 6: Final answer
    x = 242,612.58

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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.