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Finding the Fourth Proportional to 298,809.40, 446,918.10 and 267,446.20

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Solution

The fourth proportional to 298,809.40, 446,918.10 and 267,446.20 is: 400,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,809.40 : 446,918.10 = 267,446.20 : x
  2. Step 2: Convert to fraction form
    298,809.40/446,918.10 = 267,446.20/x
  3. Step 3: Cross multiply
    298,809.40x = 446,918.10 × 267,446.20
  4. Step 4: Simplify right side
    298,809.40x = 119,526,547,556.22
  5. Step 5: Solve for x
    x = 119,526,547,556.22/298,809.40
  6. Step 6: Final answer
    x = 400,009.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.