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Finding the Fourth Proportional to 508,083.45, 701,186.61 and 281,728.95

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Solution

The fourth proportional to 508,083.45, 701,186.61 and 281,728.95 is: 388,803.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,083.45 : 701,186.61 = 281,728.95 : x
  2. Step 2: Convert to fraction form
    508,083.45/701,186.61 = 281,728.95/x
  3. Step 3: Cross multiply
    508,083.45x = 701,186.61 × 281,728.95
  4. Step 4: Simplify right side
    508,083.45x = 197,544,567,389.36
  5. Step 5: Solve for x
    x = 197,544,567,389.36/508,083.45
  6. Step 6: Final answer
    x = 388,803.39

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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.