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Finding the Fourth Proportional to 279,091.98, 385,157.07 and 159,883.02

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Solution

The fourth proportional to 279,091.98, 385,157.07 and 159,883.02 is: 220,644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,091.98 : 385,157.07 = 159,883.02 : x
  2. Step 2: Convert to fraction form
    279,091.98/385,157.07 = 159,883.02/x
  3. Step 3: Cross multiply
    279,091.98x = 385,157.07 × 159,883.02
  4. Step 4: Simplify right side
    279,091.98x = 61,580,075,525.95
  5. Step 5: Solve for x
    x = 61,580,075,525.95/279,091.98
  6. Step 6: Final answer
    x = 220,644.38

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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.