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Finding the Fourth Proportional to 328,215.98, 492,324.04 and 103,599.10

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Solution

The fourth proportional to 328,215.98, 492,324.04 and 103,599.10 is: 155,398.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,215.98 : 492,324.04 = 103,599.10 : x
  2. Step 2: Convert to fraction form
    328,215.98/492,324.04 = 103,599.10/x
  3. Step 3: Cross multiply
    328,215.98x = 492,324.04 × 103,599.10
  4. Step 4: Simplify right side
    328,215.98x = 51,004,328,197.27
  5. Step 5: Solve for x
    x = 51,004,328,197.27/328,215.98
  6. Step 6: Final answer
    x = 155,398.67

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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.