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Finding the Fourth Proportional to 397,107.40, 595,661.10 and 239,254.60

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Solution

The fourth proportional to 397,107.40, 595,661.10 and 239,254.60 is: 358,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,107.40 : 595,661.10 = 239,254.60 : x
  2. Step 2: Convert to fraction form
    397,107.40/595,661.10 = 239,254.60/x
  3. Step 3: Cross multiply
    397,107.40x = 595,661.10 × 239,254.60
  4. Step 4: Simplify right side
    397,107.40x = 142,514,658,216.06
  5. Step 5: Solve for x
    x = 142,514,658,216.06/397,107.40
  6. Step 6: Final answer
    x = 358,881.90

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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.