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Finding the Fourth Proportional to 263,355.80, 395,033.70 and 210,867.80

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Solution

The fourth proportional to 263,355.80, 395,033.70 and 210,867.80 is: 316,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,355.80 : 395,033.70 = 210,867.80 : x
  2. Step 2: Convert to fraction form
    263,355.80/395,033.70 = 210,867.80/x
  3. Step 3: Cross multiply
    263,355.80x = 395,033.70 × 210,867.80
  4. Step 4: Simplify right side
    263,355.80x = 83,299,887,244.86
  5. Step 5: Solve for x
    x = 83,299,887,244.86/263,355.80
  6. Step 6: Final answer
    x = 316,301.70

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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.