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Finding the Fourth Proportional to 279,539.55, 385,754.04 and 170,825.67

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Solution

The fourth proportional to 279,539.55, 385,754.04 and 170,825.67 is: 235,732.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,539.55 : 385,754.04 = 170,825.67 : x
  2. Step 2: Convert to fraction form
    279,539.55/385,754.04 = 170,825.67/x
  3. Step 3: Cross multiply
    279,539.55x = 385,754.04 × 170,825.67
  4. Step 4: Simplify right side
    279,539.55x = 65,896,692,338.21
  5. Step 5: Solve for x
    x = 65,896,692,338.21/279,539.55
  6. Step 6: Final answer
    x = 235,732.98

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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.