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Finding the Fourth Proportional to 297,287.33, 445,999.10 and 128,835.93

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Solution

The fourth proportional to 297,287.33, 445,999.10 and 128,835.93 is: 193,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,287.33 : 445,999.10 = 128,835.93 : x
  2. Step 2: Convert to fraction form
    297,287.33/445,999.10 = 128,835.93/x
  3. Step 3: Cross multiply
    297,287.33x = 445,999.10 × 128,835.93
  4. Step 4: Simplify right side
    297,287.33x = 57,460,708,183.48
  5. Step 5: Solve for x
    x = 57,460,708,183.48/297,287.33
  6. Step 6: Final answer
    x = 193,283.41

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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.