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Finding the Fourth Proportional to 228,364.40, 342,516.36 and 103,676.72

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Solution

The fourth proportional to 228,364.40, 342,516.36 and 103,676.72 is: 155,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,364.40 : 342,516.36 = 103,676.72 : x
  2. Step 2: Convert to fraction form
    228,364.40/342,516.36 = 103,676.72/x
  3. Step 3: Cross multiply
    228,364.40x = 342,516.36 × 103,676.72
  4. Step 4: Simplify right side
    228,364.40x = 35,510,972,751.14
  5. Step 5: Solve for x
    x = 35,510,972,751.14/228,364.40
  6. Step 6: Final answer
    x = 155,501.35

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1.5x scale

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.