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Finding the Fourth Proportional to 298,951.40, 448,427.10 and 269,426.90

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Solution

The fourth proportional to 298,951.40, 448,427.10 and 269,426.90 is: 404,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,951.40 : 448,427.10 = 269,426.90 : x
  2. Step 2: Convert to fraction form
    298,951.40/448,427.10 = 269,426.90/x
  3. Step 3: Cross multiply
    298,951.40x = 448,427.10 × 269,426.90
  4. Step 4: Simplify right side
    298,951.40x = 120,818,323,428.99
  5. Step 5: Solve for x
    x = 120,818,323,428.99/298,951.40
  6. Step 6: Final answer
    x = 404,140.35

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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.