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Finding the Fourth Proportional to 260,038.20, 358,612.60 and 199,611.40

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Solution

The fourth proportional to 260,038.20, 358,612.60 and 199,611.40 is: 275,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,038.20 : 358,612.60 = 199,611.40 : x
  2. Step 2: Convert to fraction form
    260,038.20/358,612.60 = 199,611.40/x
  3. Step 3: Cross multiply
    260,038.20x = 358,612.60 × 199,611.40
  4. Step 4: Simplify right side
    260,038.20x = 71,583,163,143.64
  5. Step 5: Solve for x
    x = 71,583,163,143.64/260,038.20
  6. Step 6: Final answer
    x = 275,279.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.