Home / 300,156.23-450,234.35-142,298.57

Finding the Fourth Proportional to 300,156.23, 450,234.35 and 142,298.57

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Solution

The fourth proportional to 300,156.23, 450,234.35 and 142,298.57 is: 213,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,156.23 : 450,234.35 = 142,298.57 : x
  2. Step 2: Convert to fraction form
    300,156.23/450,234.35 = 142,298.57/x
  3. Step 3: Cross multiply
    300,156.23x = 450,234.35 × 142,298.57
  4. Step 4: Simplify right side
    300,156.23x = 64,067,705,117.59
  5. Step 5: Solve for x
    x = 64,067,705,117.59/300,156.23
  6. Step 6: Final answer
    x = 213,447.86

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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.