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Finding the Fourth Proportional to 268,596.09, 402,850.34 and 79,012.12

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Solution

The fourth proportional to 268,596.09, 402,850.34 and 79,012.12 is: 118,505.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,596.09 : 402,850.34 = 79,012.12 : x
  2. Step 2: Convert to fraction form
    268,596.09/402,850.34 = 79,012.12/x
  3. Step 3: Cross multiply
    268,596.09x = 402,850.34 × 79,012.12
  4. Step 4: Simplify right side
    268,596.09x = 31,830,058,596.53
  5. Step 5: Solve for x
    x = 31,830,058,596.53/268,596.09
  6. Step 6: Final answer
    x = 118,505.29

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1.5x scale

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.