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Finding the Fourth Proportional to 319,588.95, 479,258.82 and 119,800.32

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Solution

The fourth proportional to 319,588.95, 479,258.82 and 119,800.32 is: 179,653.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,588.95 : 479,258.82 = 119,800.32 : x
  2. Step 2: Convert to fraction form
    319,588.95/479,258.82 = 119,800.32/x
  3. Step 3: Cross multiply
    319,588.95x = 479,258.82 × 119,800.32
  4. Step 4: Simplify right side
    319,588.95x = 57,415,359,998.82
  5. Step 5: Solve for x
    x = 57,415,359,998.82/319,588.95
  6. Step 6: Final answer
    x = 179,653.77

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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.