Home / 330,374.20-455,916.37-187,134.24

Finding the Fourth Proportional to 330,374.20, 455,916.37 and 187,134.24

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Solution

The fourth proportional to 330,374.20, 455,916.37 and 187,134.24 is: 258,245.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,374.20 : 455,916.37 = 187,134.24 : x
  2. Step 2: Convert to fraction form
    330,374.20/455,916.37 = 187,134.24/x
  3. Step 3: Cross multiply
    330,374.20x = 455,916.37 × 187,134.24
  4. Step 4: Simplify right side
    330,374.20x = 85,317,565,201.98
  5. Step 5: Solve for x
    x = 85,317,565,201.98/330,374.20
  6. Step 6: Final answer
    x = 258,245.24

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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.