Home / 213,741.10-320,611.65-204,640.30

Finding the Fourth Proportional to 213,741.10, 320,611.65 and 204,640.30

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Solution

The fourth proportional to 213,741.10, 320,611.65 and 204,640.30 is: 306,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,741.10 : 320,611.65 = 204,640.30 : x
  2. Step 2: Convert to fraction form
    213,741.10/320,611.65 = 204,640.30/x
  3. Step 3: Cross multiply
    213,741.10x = 320,611.65 × 204,640.30
  4. Step 4: Simplify right side
    213,741.10x = 65,610,064,239.50
  5. Step 5: Solve for x
    x = 65,610,064,239.50/213,741.10
  6. Step 6: Final answer
    x = 306,960.45

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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.