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Finding the Fourth Proportional to 298,855.35, 412,417.75 and 162,889.30

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Solution

The fourth proportional to 298,855.35, 412,417.75 and 162,889.30 is: 224,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,855.35 : 412,417.75 = 162,889.30 : x
  2. Step 2: Convert to fraction form
    298,855.35/412,417.75 = 162,889.30/x
  3. Step 3: Cross multiply
    298,855.35x = 412,417.75 × 162,889.30
  4. Step 4: Simplify right side
    298,855.35x = 67,178,438,605.08
  5. Step 5: Solve for x
    x = 67,178,438,605.08/298,855.35
  6. Step 6: Final answer
    x = 224,785.80

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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.