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Finding the Fourth Proportional to 380,004.98, 569,990.67 and 99,516.02

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Solution

The fourth proportional to 380,004.98, 569,990.67 and 99,516.02 is: 149,269.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,004.98 : 569,990.67 = 99,516.02 : x
  2. Step 2: Convert to fraction form
    380,004.98/569,990.67 = 99,516.02/x
  3. Step 3: Cross multiply
    380,004.98x = 569,990.67 × 99,516.02
  4. Step 4: Simplify right side
    380,004.98x = 56,723,202,915.53
  5. Step 5: Solve for x
    x = 56,723,202,915.53/380,004.98
  6. Step 6: Final answer
    x = 149,269.63

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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.