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Finding the Fourth Proportional to 248,643.60, 373,159.80 and 115,540.35

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Solution

The fourth proportional to 248,643.60, 373,159.80 and 115,540.35 is: 173,400.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,643.60 : 373,159.80 = 115,540.35 : x
  2. Step 2: Convert to fraction form
    248,643.60/373,159.80 = 115,540.35/x
  3. Step 3: Cross multiply
    248,643.60x = 373,159.80 × 115,540.35
  4. Step 4: Simplify right side
    248,643.60x = 43,115,013,897.93
  5. Step 5: Solve for x
    x = 43,115,013,897.93/248,643.60
  6. Step 6: Final answer
    x = 173,400.86

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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.