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Finding the Fourth Proportional to 248,978.04, 373,275.63 and 128,906.25

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Solution

The fourth proportional to 248,978.04, 373,275.63 and 128,906.25 is: 193,260.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,978.04 : 373,275.63 = 128,906.25 : x
  2. Step 2: Convert to fraction form
    248,978.04/373,275.63 = 128,906.25/x
  3. Step 3: Cross multiply
    248,978.04x = 373,275.63 × 128,906.25
  4. Step 4: Simplify right side
    248,978.04x = 48,117,561,679.69
  5. Step 5: Solve for x
    x = 48,117,561,679.69/248,978.04
  6. Step 6: Final answer
    x = 193,260.26

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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.