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Finding the Fourth Proportional to 289,796.33, 399,456.85 and 228,442.46

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Solution

The fourth proportional to 289,796.33, 399,456.85 and 228,442.46 is: 314,886.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,796.33 : 399,456.85 = 228,442.46 : x
  2. Step 2: Convert to fraction form
    289,796.33/399,456.85 = 228,442.46/x
  3. Step 3: Cross multiply
    289,796.33x = 399,456.85 × 228,442.46
  4. Step 4: Simplify right side
    289,796.33x = 91,252,908,233.69
  5. Step 5: Solve for x
    x = 91,252,908,233.69/289,796.33
  6. Step 6: Final answer
    x = 314,886.35

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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.