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Finding the Fourth Proportional to 228,281.70, 342,422.55 and 103,622.70

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Solution

The fourth proportional to 228,281.70, 342,422.55 and 103,622.70 is: 155,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,281.70 : 342,422.55 = 103,622.70 : x
  2. Step 2: Convert to fraction form
    228,281.70/342,422.55 = 103,622.70/x
  3. Step 3: Cross multiply
    228,281.70x = 342,422.55 × 103,622.70
  4. Step 4: Simplify right side
    228,281.70x = 35,482,749,171.89
  5. Step 5: Solve for x
    x = 35,482,749,171.89/228,281.70
  6. Step 6: Final answer
    x = 155,434.05

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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.