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Finding the Fourth Proportional to 425,551.80, 587,155.50 and 274,467

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Solution

The fourth proportional to 425,551.80, 587,155.50 and 274,467 is: 378,696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,551.80 : 587,155.50 = 274,467 : x
  2. Step 2: Convert to fraction form
    425,551.80/587,155.50 = 274,467/x
  3. Step 3: Cross multiply
    425,551.80x = 587,155.50 × 274,467
  4. Step 4: Simplify right side
    425,551.80x = 161,154,808,618.50
  5. Step 5: Solve for x
    x = 161,154,808,618.50/425,551.80
  6. Step 6: Final answer
    x = 378,696.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.