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Finding the Fourth Proportional to 282,125.52, 389,319.84 and 154,798.56

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Solution

The fourth proportional to 282,125.52, 389,319.84 and 154,798.56 is: 213,614.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,125.52 : 389,319.84 = 154,798.56 : x
  2. Step 2: Convert to fraction form
    282,125.52/389,319.84 = 154,798.56/x
  3. Step 3: Cross multiply
    282,125.52x = 389,319.84 × 154,798.56
  4. Step 4: Simplify right side
    282,125.52x = 60,266,150,611.43
  5. Step 5: Solve for x
    x = 60,266,150,611.43/282,125.52
  6. Step 6: Final answer
    x = 213,614.67

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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.