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Finding the Fourth Proportional to 328,364.52, 492,574.73 and 103,664.85

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Solution

The fourth proportional to 328,364.52, 492,574.73 and 103,664.85 is: 155,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,364.52 : 492,574.73 = 103,664.85 : x
  2. Step 2: Convert to fraction form
    328,364.52/492,574.73 = 103,664.85/x
  3. Step 3: Cross multiply
    328,364.52x = 492,574.73 × 103,664.85
  4. Step 4: Simplify right side
    328,364.52x = 51,062,685,499.24
  5. Step 5: Solve for x
    x = 51,062,685,499.24/328,364.52
  6. Step 6: Final answer
    x = 155,506.10

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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.