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Finding the Fourth Proportional to 251,018.56, 346,408.02 and 137,843.68

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Solution

The fourth proportional to 251,018.56, 346,408.02 and 137,843.68 is: 190,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,018.56 : 346,408.02 = 137,843.68 : x
  2. Step 2: Convert to fraction form
    251,018.56/346,408.02 = 137,843.68/x
  3. Step 3: Cross multiply
    251,018.56x = 346,408.02 × 137,843.68
  4. Step 4: Simplify right side
    251,018.56x = 47,750,156,258.31
  5. Step 5: Solve for x
    x = 47,750,156,258.31/251,018.56
  6. Step 6: Final answer
    x = 190,225.60

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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.