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Finding the Fourth Proportional to 251,254.98, 346,745.16 and 142,380.45

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Solution

The fourth proportional to 251,254.98, 346,745.16 and 142,380.45 is: 196,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,254.98 : 346,745.16 = 142,380.45 : x
  2. Step 2: Convert to fraction form
    251,254.98/346,745.16 = 142,380.45/x
  3. Step 3: Cross multiply
    251,254.98x = 346,745.16 × 142,380.45
  4. Step 4: Simplify right side
    251,254.98x = 49,369,731,916.12
  5. Step 5: Solve for x
    x = 49,369,731,916.12/251,254.98
  6. Step 6: Final answer
    x = 196,492.55

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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.