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Finding the Fourth Proportional to 251,674.61, 347,306.47 and 136,949.34

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Solution

The fourth proportional to 251,674.61, 347,306.47 and 136,949.34 is: 188,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,674.61 : 347,306.47 = 136,949.34 : x
  2. Step 2: Convert to fraction form
    251,674.61/347,306.47 = 136,949.34/x
  3. Step 3: Cross multiply
    251,674.61x = 347,306.47 × 136,949.34
  4. Step 4: Simplify right side
    251,674.61x = 47,563,392,804.26
  5. Step 5: Solve for x
    x = 47,563,392,804.26/251,674.61
  6. Step 6: Final answer
    x = 188,987.65

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1.5x scale

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.