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Finding the Fourth Proportional to 342,022.08, 513,136.80 and 164,478.72

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Solution

The fourth proportional to 342,022.08, 513,136.80 and 164,478.72 is: 246,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,022.08 : 513,136.80 = 164,478.72 : x
  2. Step 2: Convert to fraction form
    342,022.08/513,136.80 = 164,478.72/x
  3. Step 3: Cross multiply
    342,022.08x = 513,136.80 × 164,478.72
  4. Step 4: Simplify right side
    342,022.08x = 84,400,084,048.90
  5. Step 5: Solve for x
    x = 84,400,084,048.90/342,022.08
  6. Step 6: Final answer
    x = 246,767.94

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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.