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Finding the Fourth Proportional to 339,597.72, 468,647.10 and 212,347.80

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Solution

The fourth proportional to 339,597.72, 468,647.10 and 212,347.80 is: 293,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,597.72 : 468,647.10 = 212,347.80 : x
  2. Step 2: Convert to fraction form
    339,597.72/468,647.10 = 212,347.80/x
  3. Step 3: Cross multiply
    339,597.72x = 468,647.10 × 212,347.80
  4. Step 4: Simplify right side
    339,597.72x = 99,516,180,661.38
  5. Step 5: Solve for x
    x = 99,516,180,661.38/339,597.72
  6. Step 6: Final answer
    x = 293,041.37

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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.