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Finding the Fourth Proportional to 248,365.88, 342,735.40 and 140,929.50

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Solution

The fourth proportional to 248,365.88, 342,735.40 and 140,929.50 is: 194,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,365.88 : 342,735.40 = 140,929.50 : x
  2. Step 2: Convert to fraction form
    248,365.88/342,735.40 = 140,929.50/x
  3. Step 3: Cross multiply
    248,365.88x = 342,735.40 × 140,929.50
  4. Step 4: Simplify right side
    248,365.88x = 48,301,528,554.30
  5. Step 5: Solve for x
    x = 48,301,528,554.30/248,365.88
  6. Step 6: Final answer
    x = 194,477.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.