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Finding the Fourth Proportional to 248,777.20, 373,165.80 and 91,021.60

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Solution

The fourth proportional to 248,777.20, 373,165.80 and 91,021.60 is: 136,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,777.20 : 373,165.80 = 91,021.60 : x
  2. Step 2: Convert to fraction form
    248,777.20/373,165.80 = 91,021.60/x
  3. Step 3: Cross multiply
    248,777.20x = 373,165.80 × 91,021.60
  4. Step 4: Simplify right side
    248,777.20x = 33,966,148,181.28
  5. Step 5: Solve for x
    x = 33,966,148,181.28/248,777.20
  6. Step 6: Final answer
    x = 136,532.40

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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.