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Finding the Fourth Proportional to 298,089.23, 447,123.58 and 84,858.45

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Solution

The fourth proportional to 298,089.23, 447,123.58 and 84,858.45 is: 127,284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,089.23 : 447,123.58 = 84,858.45 : x
  2. Step 2: Convert to fraction form
    298,089.23/447,123.58 = 84,858.45/x
  3. Step 3: Cross multiply
    298,089.23x = 447,123.58 × 84,858.45
  4. Step 4: Simplify right side
    298,089.23x = 37,942,214,583.46
  5. Step 5: Solve for x
    x = 37,942,214,583.46/298,089.23
  6. Step 6: Final answer
    x = 127,284.75

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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.