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Finding the Fourth Proportional to 228,511.20, 342,766.80 and 60,020.40

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Solution

The fourth proportional to 228,511.20, 342,766.80 and 60,020.40 is: 90,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,511.20 : 342,766.80 = 60,020.40 : x
  2. Step 2: Convert to fraction form
    228,511.20/342,766.80 = 60,020.40/x
  3. Step 3: Cross multiply
    228,511.20x = 342,766.80 × 60,020.40
  4. Step 4: Simplify right side
    228,511.20x = 20,573,000,442.72
  5. Step 5: Solve for x
    x = 20,573,000,442.72/228,511.20
  6. Step 6: Final answer
    x = 90,030.60

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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.