Home / 203,311.19-280,570.10-112,668.65

Finding the Fourth Proportional to 203,311.19, 280,570.10 and 112,668.65

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Solution

The fourth proportional to 203,311.19, 280,570.10 and 112,668.65 is: 155,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,311.19 : 280,570.10 = 112,668.65 : x
  2. Step 2: Convert to fraction form
    203,311.19/280,570.10 = 112,668.65/x
  3. Step 3: Cross multiply
    203,311.19x = 280,570.10 × 112,668.65
  4. Step 4: Simplify right side
    203,311.19x = 31,611,452,431.17
  5. Step 5: Solve for x
    x = 31,611,452,431.17/203,311.19
  6. Step 6: Final answer
    x = 155,483.10

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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.