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Finding the Fourth Proportional to 354,136.02, 488,693.50 and 192,987.61

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Solution

The fourth proportional to 354,136.02, 488,693.50 and 192,987.61 is: 266,315.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,136.02 : 488,693.50 = 192,987.61 : x
  2. Step 2: Convert to fraction form
    354,136.02/488,693.50 = 192,987.61/x
  3. Step 3: Cross multiply
    354,136.02x = 488,693.50 × 192,987.61
  4. Step 4: Simplify right side
    354,136.02x = 94,311,792,717.79
  5. Step 5: Solve for x
    x = 94,311,792,717.79/354,136.02
  6. Step 6: Final answer
    x = 266,315.16

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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.