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Finding the Fourth Proportional to 251,303.50, 346,799.37 and 138,127.06

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Solution

The fourth proportional to 251,303.50, 346,799.37 and 138,127.06 is: 190,615.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,303.50 : 346,799.37 = 138,127.06 : x
  2. Step 2: Convert to fraction form
    251,303.50/346,799.37 = 138,127.06/x
  3. Step 3: Cross multiply
    251,303.50x = 346,799.37 × 138,127.06
  4. Step 4: Simplify right side
    251,303.50x = 47,902,377,387.95
  5. Step 5: Solve for x
    x = 47,902,377,387.95/251,303.50
  6. Step 6: Final answer
    x = 190,615.64

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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.