Home / 331,916.40-458,085.78-202,828.32

Finding the Fourth Proportional to 331,916.40, 458,085.78 and 202,828.32

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Solution

The fourth proportional to 331,916.40, 458,085.78 and 202,828.32 is: 279,928.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,916.40 : 458,085.78 = 202,828.32 : x
  2. Step 2: Convert to fraction form
    331,916.40/458,085.78 = 202,828.32/x
  3. Step 3: Cross multiply
    331,916.40x = 458,085.78 × 202,828.32
  4. Step 4: Simplify right side
    331,916.40x = 92,912,769,173.29
  5. Step 5: Solve for x
    x = 92,912,769,173.29/331,916.40
  6. Step 6: Final answer
    x = 279,928.23

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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.