Home / 211,638.38-317,467.29-53,868.20

Finding the Fourth Proportional to 211,638.38, 317,467.29 and 53,868.20

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Solution

The fourth proportional to 211,638.38, 317,467.29 and 53,868.20 is: 80,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,638.38 : 317,467.29 = 53,868.20 : x
  2. Step 2: Convert to fraction form
    211,638.38/317,467.29 = 53,868.20/x
  3. Step 3: Cross multiply
    211,638.38x = 317,467.29 × 53,868.20
  4. Step 4: Simplify right side
    211,638.38x = 17,101,391,471.18
  5. Step 5: Solve for x
    x = 17,101,391,471.18/211,638.38
  6. Step 6: Final answer
    x = 80,804.77

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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.