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Finding the Fourth Proportional to 319,602.97, 479,279.86 and 119,814.35

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Solution

The fourth proportional to 319,602.97, 479,279.86 and 119,814.35 is: 179,674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,602.97 : 479,279.86 = 119,814.35 : x
  2. Step 2: Convert to fraction form
    319,602.97/479,279.86 = 119,814.35/x
  3. Step 3: Cross multiply
    319,602.97x = 479,279.86 × 119,814.35
  4. Step 4: Simplify right side
    319,602.97x = 57,424,604,893.99
  5. Step 5: Solve for x
    x = 57,424,604,893.99/319,602.97
  6. Step 6: Final answer
    x = 179,674.82

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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.