Home / 211,806.46-292,219.85-135,370.30

Finding the Fourth Proportional to 211,806.46, 292,219.85 and 135,370.30

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Solution

The fourth proportional to 211,806.46, 292,219.85 and 135,370.30 is: 186,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,806.46 : 292,219.85 = 135,370.30 : x
  2. Step 2: Convert to fraction form
    211,806.46/292,219.85 = 135,370.30/x
  3. Step 3: Cross multiply
    211,806.46x = 292,219.85 × 135,370.30
  4. Step 4: Simplify right side
    211,806.46x = 39,557,889,327.18
  5. Step 5: Solve for x
    x = 39,557,889,327.18/211,806.46
  6. Step 6: Final answer
    x = 186,764.32

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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.