Home / 281,916.32-389,025.52-154,589.20

Finding the Fourth Proportional to 281,916.32, 389,025.52 and 154,589.20

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Solution

The fourth proportional to 281,916.32, 389,025.52 and 154,589.20 is: 213,322.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,916.32 : 389,025.52 = 154,589.20 : x
  2. Step 2: Convert to fraction form
    281,916.32/389,025.52 = 154,589.20/x
  3. Step 3: Cross multiply
    281,916.32x = 389,025.52 × 154,589.20
  4. Step 4: Simplify right side
    281,916.32x = 60,139,143,916.38
  5. Step 5: Solve for x
    x = 60,139,143,916.38/281,916.32
  6. Step 6: Final answer
    x = 213,322.68

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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.