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Finding the Fourth Proportional to 228,325.45, 342,488.18 and 103,666.45

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Solution

The fourth proportional to 228,325.45, 342,488.18 and 103,666.45 is: 155,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,325.45 : 342,488.18 = 103,666.45 : x
  2. Step 2: Convert to fraction form
    228,325.45/342,488.18 = 103,666.45/x
  3. Step 3: Cross multiply
    228,325.45x = 342,488.18 × 103,666.45
  4. Step 4: Simplify right side
    228,325.45x = 35,504,533,787.56
  5. Step 5: Solve for x
    x = 35,504,533,787.56/228,325.45
  6. Step 6: Final answer
    x = 155,499.68

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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.