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Finding the Fourth Proportional to 188,692.45, 283,038.62 and 129,348.20

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Solution

The fourth proportional to 188,692.45, 283,038.62 and 129,348.20 is: 194,022.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,692.45 : 283,038.62 = 129,348.20 : x
  2. Step 2: Convert to fraction form
    188,692.45/283,038.62 = 129,348.20/x
  3. Step 3: Cross multiply
    188,692.45x = 283,038.62 × 129,348.20
  4. Step 4: Simplify right side
    188,692.45x = 36,610,536,088.34
  5. Step 5: Solve for x
    x = 36,610,536,088.34/188,692.45
  6. Step 6: Final answer
    x = 194,022.27

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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.