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Finding the Fourth Proportional to 319,602.47, 479,279.12 and 119,813.85

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Solution

The fourth proportional to 319,602.47, 479,279.12 and 119,813.85 is: 179,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,602.47 : 479,279.12 = 119,813.85 : x
  2. Step 2: Convert to fraction form
    319,602.47/479,279.12 = 119,813.85/x
  3. Step 3: Cross multiply
    319,602.47x = 479,279.12 × 119,813.85
  4. Step 4: Simplify right side
    319,602.47x = 57,424,273,596.35
  5. Step 5: Solve for x
    x = 57,424,273,596.35/319,602.47
  6. Step 6: Final answer
    x = 179,674.06

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1.5x scale

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.