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Finding the Fourth Proportional to 319,952.94, 480,016.93 and 140,005.65

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Solution

The fourth proportional to 319,952.94, 480,016.93 and 140,005.65 is: 210,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,952.94 : 480,016.93 = 140,005.65 : x
  2. Step 2: Convert to fraction form
    319,952.94/480,016.93 = 140,005.65/x
  3. Step 3: Cross multiply
    319,952.94x = 480,016.93 × 140,005.65
  4. Step 4: Simplify right side
    319,952.94x = 67,205,082,295.65
  5. Step 5: Solve for x
    x = 67,205,082,295.65/319,952.94
  6. Step 6: Final answer
    x = 210,046.77

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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.