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Finding the Fourth Proportional to 425,258.59, 637,900.19 and 109,715.50

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Solution

The fourth proportional to 425,258.59, 637,900.19 and 109,715.50 is: 164,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,258.59 : 637,900.19 = 109,715.50 : x
  2. Step 2: Convert to fraction form
    425,258.59/637,900.19 = 109,715.50/x
  3. Step 3: Cross multiply
    425,258.59x = 637,900.19 × 109,715.50
  4. Step 4: Simplify right side
    425,258.59x = 69,987,538,295.95
  5. Step 5: Solve for x
    x = 69,987,538,295.95/425,258.59
  6. Step 6: Final answer
    x = 164,576.42

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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.