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Finding the Fourth Proportional to 228,049.92, 342,075.60 and 134,490

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Solution

The fourth proportional to 228,049.92, 342,075.60 and 134,490 is: 201,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,049.92 : 342,075.60 = 134,490 : x
  2. Step 2: Convert to fraction form
    228,049.92/342,075.60 = 134,490/x
  3. Step 3: Cross multiply
    228,049.92x = 342,075.60 × 134,490
  4. Step 4: Simplify right side
    228,049.92x = 46,005,747,444
  5. Step 5: Solve for x
    x = 46,005,747,444/228,049.92
  6. Step 6: Final answer
    x = 201,735.42

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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.