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Finding the Fourth Proportional to 508,111.65, 701,194.08 and 281,757.15

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Solution

The fourth proportional to 508,111.65, 701,194.08 and 281,757.15 is: 388,824.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,111.65 : 701,194.08 = 281,757.15 : x
  2. Step 2: Convert to fraction form
    508,111.65/701,194.08 = 281,757.15/x
  3. Step 3: Cross multiply
    508,111.65x = 701,194.08 × 281,757.15
  4. Step 4: Simplify right side
    508,111.65x = 197,566,445,577.67
  5. Step 5: Solve for x
    x = 197,566,445,577.67/508,111.65
  6. Step 6: Final answer
    x = 388,824.87

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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.