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Finding the Fourth Proportional to 297,428.89, 445,602.05 and 265,542.43

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Solution

The fourth proportional to 297,428.89, 445,602.05 and 265,542.43 is: 397,830.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,428.89 : 445,602.05 = 265,542.43 : x
  2. Step 2: Convert to fraction form
    297,428.89/445,602.05 = 265,542.43/x
  3. Step 3: Cross multiply
    297,428.89x = 445,602.05 × 265,542.43
  4. Step 4: Simplify right side
    297,428.89x = 118,326,247,614.26
  5. Step 5: Solve for x
    x = 118,326,247,614.26/297,428.89
  6. Step 6: Final answer
    x = 397,830.38

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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.