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Finding the Fourth Proportional to 393,167.79, 589,752.29 and 168,510.65

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Solution

The fourth proportional to 393,167.79, 589,752.29 and 168,510.65 is: 252,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,167.79 : 589,752.29 = 168,510.65 : x
  2. Step 2: Convert to fraction form
    393,167.79/589,752.29 = 168,510.65/x
  3. Step 3: Cross multiply
    393,167.79x = 589,752.29 × 168,510.65
  4. Step 4: Simplify right side
    393,167.79x = 99,379,539,199.40
  5. Step 5: Solve for x
    x = 99,379,539,199.40/393,167.79
  6. Step 6: Final answer
    x = 252,766.23

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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.