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Finding the Fourth Proportional to 211,879.60, 317,527.80 and 140,599.60

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Solution

The fourth proportional to 211,879.60, 317,527.80 and 140,599.60 is: 210,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,879.60 : 317,527.80 = 140,599.60 : x
  2. Step 2: Convert to fraction form
    211,879.60/317,527.80 = 140,599.60/x
  3. Step 3: Cross multiply
    211,879.60x = 317,527.80 × 140,599.60
  4. Step 4: Simplify right side
    211,879.60x = 44,644,281,668.88
  5. Step 5: Solve for x
    x = 44,644,281,668.88/211,879.60
  6. Step 6: Final answer
    x = 210,705.90

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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.