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Finding the Fourth Proportional to 295,812.72, 408,174.36 and 168,490.80

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Solution

The fourth proportional to 295,812.72, 408,174.36 and 168,490.80 is: 232,490.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,812.72 : 408,174.36 = 168,490.80 : x
  2. Step 2: Convert to fraction form
    295,812.72/408,174.36 = 168,490.80/x
  3. Step 3: Cross multiply
    295,812.72x = 408,174.36 × 168,490.80
  4. Step 4: Simplify right side
    295,812.72x = 68,773,624,455.89
  5. Step 5: Solve for x
    x = 68,773,624,455.89/295,812.72
  6. Step 6: Final answer
    x = 232,490.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.