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Finding the Fourth Proportional to 508,172.56, 701,260.50 and 281,839.12

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Solution

The fourth proportional to 508,172.56, 701,260.50 and 281,839.12 is: 388,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,172.56 : 701,260.50 = 281,839.12 : x
  2. Step 2: Convert to fraction form
    508,172.56/701,260.50 = 281,839.12/x
  3. Step 3: Cross multiply
    508,172.56x = 701,260.50 × 281,839.12
  4. Step 4: Simplify right side
    508,172.56x = 197,642,641,514.51
  5. Step 5: Solve for x
    x = 197,642,641,514.51/508,172.56
  6. Step 6: Final answer
    x = 388,928.21

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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.