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Finding the Fourth Proportional to 328,552.21, 492,855.97 and 103,907.65

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Solution

The fourth proportional to 328,552.21, 492,855.97 and 103,907.65 is: 155,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,552.21 : 492,855.97 = 103,907.65 : x
  2. Step 2: Convert to fraction form
    328,552.21/492,855.97 = 103,907.65/x
  3. Step 3: Cross multiply
    328,552.21x = 492,855.97 × 103,907.65
  4. Step 4: Simplify right side
    328,552.21x = 51,211,505,631.17
  5. Step 5: Solve for x
    x = 51,211,505,631.17/328,552.21
  6. Step 6: Final answer
    x = 155,870.22

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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.