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Finding the Fourth Proportional to 425,177.66, 637,825.02 and 188,515.10

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Solution

The fourth proportional to 425,177.66, 637,825.02 and 188,515.10 is: 282,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,177.66 : 637,825.02 = 188,515.10 : x
  2. Step 2: Convert to fraction form
    425,177.66/637,825.02 = 188,515.10/x
  3. Step 3: Cross multiply
    425,177.66x = 637,825.02 × 188,515.10
  4. Step 4: Simplify right side
    425,177.66x = 120,239,647,427.80
  5. Step 5: Solve for x
    x = 120,239,647,427.80/425,177.66
  6. Step 6: Final answer
    x = 282,798.60

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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.