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Finding the Fourth Proportional to 300,062.39, 413,421.50 and 197,907.62

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Solution

The fourth proportional to 300,062.39, 413,421.50 and 197,907.62 is: 272,674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,062.39 : 413,421.50 = 197,907.62 : x
  2. Step 2: Convert to fraction form
    300,062.39/413,421.50 = 197,907.62/x
  3. Step 3: Cross multiply
    300,062.39x = 413,421.50 × 197,907.62
  4. Step 4: Simplify right side
    300,062.39x = 81,819,263,549.49
  5. Step 5: Solve for x
    x = 81,819,263,549.49/300,062.39
  6. Step 6: Final answer
    x = 272,674.18

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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.