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Finding the Fourth Proportional to 318,100.93, 438,968.15 and 174,859.95

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Solution

The fourth proportional to 318,100.93, 438,968.15 and 174,859.95 is: 241,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,100.93 : 438,968.15 = 174,859.95 : x
  2. Step 2: Convert to fraction form
    318,100.93/438,968.15 = 174,859.95/x
  3. Step 3: Cross multiply
    318,100.93x = 438,968.15 × 174,859.95
  4. Step 4: Simplify right side
    318,100.93x = 76,757,946,240.16
  5. Step 5: Solve for x
    x = 76,757,946,240.16/318,100.93
  6. Step 6: Final answer
    x = 241,300.60

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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.