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Finding the Fourth Proportional to 362,123.20, 542,601.60 and 302,636.80

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Solution

The fourth proportional to 362,123.20, 542,601.60 and 302,636.80 is: 453,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,123.20 : 542,601.60 = 302,636.80 : x
  2. Step 2: Convert to fraction form
    362,123.20/542,601.60 = 302,636.80/x
  3. Step 3: Cross multiply
    362,123.20x = 542,601.60 × 302,636.80
  4. Step 4: Simplify right side
    362,123.20x = 164,211,211,898.88
  5. Step 5: Solve for x
    x = 164,211,211,898.88/362,123.20
  6. Step 6: Final answer
    x = 453,467.80

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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.