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Finding the Fourth Proportional to 199,585.61, 299,506.90 and 79,622.08

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Solution

The fourth proportional to 199,585.61, 299,506.90 and 79,622.08 is: 119,484.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,585.61 : 299,506.90 = 79,622.08 : x
  2. Step 2: Convert to fraction form
    199,585.61/299,506.90 = 79,622.08/x
  3. Step 3: Cross multiply
    199,585.61x = 299,506.90 × 79,622.08
  4. Step 4: Simplify right side
    199,585.61x = 23,847,362,352.35
  5. Step 5: Solve for x
    x = 23,847,362,352.35/199,585.61
  6. Step 6: Final answer
    x = 119,484.38

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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.