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Finding the Fourth Proportional to 286,676.88, 427,596.52 and 248,940.20

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Solution

The fourth proportional to 286,676.88, 427,596.52 and 248,940.20 is: 371,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,676.88 : 427,596.52 = 248,940.20 : x
  2. Step 2: Convert to fraction form
    286,676.88/427,596.52 = 248,940.20/x
  3. Step 3: Cross multiply
    286,676.88x = 427,596.52 × 248,940.20
  4. Step 4: Simplify right side
    286,676.88x = 106,445,960,447.77
  5. Step 5: Solve for x
    x = 106,445,960,447.77/286,676.88
  6. Step 6: Final answer
    x = 371,309.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.