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Finding the Fourth Proportional to 286,348.36, 429,600.36 and 99,374.44

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Solution

The fourth proportional to 286,348.36, 429,600.36 and 99,374.44 is: 149,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,348.36 : 429,600.36 = 99,374.44 : x
  2. Step 2: Convert to fraction form
    286,348.36/429,600.36 = 99,374.44/x
  3. Step 3: Cross multiply
    286,348.36x = 429,600.36 × 99,374.44
  4. Step 4: Simplify right side
    286,348.36x = 42,691,295,198.80
  5. Step 5: Solve for x
    x = 42,691,295,198.80/286,348.36
  6. Step 6: Final answer
    x = 149,088.67

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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.