Home / 297,287.74-445,999.76-128,836.35

Finding the Fourth Proportional to 297,287.74, 445,999.76 and 128,836.35

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Solution

The fourth proportional to 297,287.74, 445,999.76 and 128,836.35 is: 193,284.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,287.74 : 445,999.76 = 128,836.35 : x
  2. Step 2: Convert to fraction form
    297,287.74/445,999.76 = 128,836.35/x
  3. Step 3: Cross multiply
    297,287.74x = 445,999.76 × 128,836.35
  4. Step 4: Simplify right side
    297,287.74x = 57,460,981,018.23
  5. Step 5: Solve for x
    x = 57,460,981,018.23/297,287.74
  6. Step 6: Final answer
    x = 193,284.06

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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.