Home / 456,768.40-685,152.60-141,257.20

Finding the Fourth Proportional to 456,768.40, 685,152.60 and 141,257.20

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Solution

The fourth proportional to 456,768.40, 685,152.60 and 141,257.20 is: 211,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,768.40 : 685,152.60 = 141,257.20 : x
  2. Step 2: Convert to fraction form
    456,768.40/685,152.60 = 141,257.20/x
  3. Step 3: Cross multiply
    456,768.40x = 685,152.60 × 141,257.20
  4. Step 4: Simplify right side
    456,768.40x = 96,782,737,848.72
  5. Step 5: Solve for x
    x = 96,782,737,848.72/456,768.40
  6. Step 6: Final answer
    x = 211,885.80

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Similar ratio
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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.