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Finding the Fourth Proportional to 228,924.30, 315,935.51 and 133,428.94

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Solution

The fourth proportional to 228,924.30, 315,935.51 and 133,428.94 is: 184,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,924.30 : 315,935.51 = 133,428.94 : x
  2. Step 2: Convert to fraction form
    228,924.30/315,935.51 = 133,428.94/x
  3. Step 3: Cross multiply
    228,924.30x = 315,935.51 × 133,428.94
  4. Step 4: Simplify right side
    228,924.30x = 42,154,940,207.66
  5. Step 5: Solve for x
    x = 42,154,940,207.66/228,924.30
  6. Step 6: Final answer
    x = 184,143.58

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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.