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Finding the Fourth Proportional to 443,556.50, 612,107.97 and 242,352.50

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Solution

The fourth proportional to 443,556.50, 612,107.97 and 242,352.50 is: 334,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,556.50 : 612,107.97 = 242,352.50 : x
  2. Step 2: Convert to fraction form
    443,556.50/612,107.97 = 242,352.50/x
  3. Step 3: Cross multiply
    443,556.50x = 612,107.97 × 242,352.50
  4. Step 4: Simplify right side
    443,556.50x = 148,345,896,799.43
  5. Step 5: Solve for x
    x = 148,345,896,799.43/443,556.50
  6. Step 6: Final answer
    x = 334,446.45

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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.