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Finding the Fourth Proportional to 425,070.42, 637,168.23 and 188,524.50

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Solution

The fourth proportional to 425,070.42, 637,168.23 and 188,524.50 is: 282,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,070.42 : 637,168.23 = 188,524.50 : x
  2. Step 2: Convert to fraction form
    425,070.42/637,168.23 = 188,524.50/x
  3. Step 3: Cross multiply
    425,070.42x = 637,168.23 × 188,524.50
  4. Step 4: Simplify right side
    425,070.42x = 120,121,821,976.64
  5. Step 5: Solve for x
    x = 120,121,821,976.64/425,070.42
  6. Step 6: Final answer
    x = 282,592.76

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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.