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Finding the Fourth Proportional to 299,548.95, 412,885.40 and 212,363.79

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Solution

The fourth proportional to 299,548.95, 412,885.40 and 212,363.79 is: 292,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,548.95 : 412,885.40 = 212,363.79 : x
  2. Step 2: Convert to fraction form
    299,548.95/412,885.40 = 212,363.79/x
  3. Step 3: Cross multiply
    299,548.95x = 412,885.40 × 212,363.79
  4. Step 4: Simplify right side
    299,548.95x = 87,681,907,317.85
  5. Step 5: Solve for x
    x = 87,681,907,317.85/299,548.95
  6. Step 6: Final answer
    x = 292,713.12

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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.