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Finding the Fourth Proportional to 263,780.40, 395,670.60 and 162,303.60

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Solution

The fourth proportional to 263,780.40, 395,670.60 and 162,303.60 is: 243,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,780.40 : 395,670.60 = 162,303.60 : x
  2. Step 2: Convert to fraction form
    263,780.40/395,670.60 = 162,303.60/x
  3. Step 3: Cross multiply
    263,780.40x = 395,670.60 × 162,303.60
  4. Step 4: Simplify right side
    263,780.40x = 64,218,762,794.16
  5. Step 5: Solve for x
    x = 64,218,762,794.16/263,780.40
  6. Step 6: Final answer
    x = 243,455.40

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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.