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Finding the Fourth Proportional to 251,392.89, 346,929.03 and 136,679.25

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Solution

The fourth proportional to 251,392.89, 346,929.03 and 136,679.25 is: 188,621.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,392.89 : 346,929.03 = 136,679.25 : x
  2. Step 2: Convert to fraction form
    251,392.89/346,929.03 = 136,679.25/x
  3. Step 3: Cross multiply
    251,392.89x = 346,929.03 × 136,679.25
  4. Step 4: Simplify right side
    251,392.89x = 47,417,999,623.63
  5. Step 5: Solve for x
    x = 47,417,999,623.63/251,392.89
  6. Step 6: Final answer
    x = 188,621.08

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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.