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Finding the Fourth Proportional to 289,627.60, 434,124.60 and 102,542.80

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Solution

The fourth proportional to 289,627.60, 434,124.60 and 102,542.80 is: 153,702.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,627.60 : 434,124.60 = 102,542.80 : x
  2. Step 2: Convert to fraction form
    289,627.60/434,124.60 = 102,542.80/x
  3. Step 3: Cross multiply
    289,627.60x = 434,124.60 × 102,542.80
  4. Step 4: Simplify right side
    289,627.60x = 44,516,352,032.88
  5. Step 5: Solve for x
    x = 44,516,352,032.88/289,627.60
  6. Step 6: Final answer
    x = 153,702.04

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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.