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Finding the Fourth Proportional to 279,554.26, 385,760.56 and 158,700.64

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Solution

The fourth proportional to 279,554.26, 385,760.56 and 158,700.64 is: 218,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,554.26 : 385,760.56 = 158,700.64 : x
  2. Step 2: Convert to fraction form
    279,554.26/385,760.56 = 158,700.64/x
  3. Step 3: Cross multiply
    279,554.26x = 385,760.56 × 158,700.64
  4. Step 4: Simplify right side
    279,554.26x = 61,220,447,758.76
  5. Step 5: Solve for x
    x = 61,220,447,758.76/279,554.26
  6. Step 6: Final answer
    x = 218,993.08

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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.