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Finding the Fourth Proportional to 343,492.67, 515,285.80 and 118,792.80

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Solution

The fourth proportional to 343,492.67, 515,285.80 and 118,792.80 is: 178,205.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,492.67 : 515,285.80 = 118,792.80 : x
  2. Step 2: Convert to fraction form
    343,492.67/515,285.80 = 118,792.80/x
  3. Step 3: Cross multiply
    343,492.67x = 515,285.80 × 118,792.80
  4. Step 4: Simplify right side
    343,492.67x = 61,212,242,685.26
  5. Step 5: Solve for x
    x = 61,212,242,685.26/343,492.67
  6. Step 6: Final answer
    x = 178,205.38

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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.