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Finding the Fourth Proportional to 298,557.40, 412,046.88 and 171,230.26

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Solution

The fourth proportional to 298,557.40, 412,046.88 and 171,230.26 is: 236,319.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,557.40 : 412,046.88 = 171,230.26 : x
  2. Step 2: Convert to fraction form
    298,557.40/412,046.88 = 171,230.26/x
  3. Step 3: Cross multiply
    298,557.40x = 412,046.88 × 171,230.26
  4. Step 4: Simplify right side
    298,557.40x = 70,554,894,394.59
  5. Step 5: Solve for x
    x = 70,554,894,394.59/298,557.40
  6. Step 6: Final answer
    x = 236,319.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.