Home / 199,136.20-298,704.30-146,259.40

Finding the Fourth Proportional to 199,136.20, 298,704.30 and 146,259.40

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Solution

The fourth proportional to 199,136.20, 298,704.30 and 146,259.40 is: 219,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,136.20 : 298,704.30 = 146,259.40 : x
  2. Step 2: Convert to fraction form
    199,136.20/298,704.30 = 146,259.40/x
  3. Step 3: Cross multiply
    199,136.20x = 298,704.30 × 146,259.40
  4. Step 4: Simplify right side
    199,136.20x = 43,688,311,695.42
  5. Step 5: Solve for x
    x = 43,688,311,695.42/199,136.20
  6. Step 6: Final answer
    x = 219,389.10

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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.