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Finding the Fourth Proportional to 260,339.01, 390,104.60 and 180,532.64

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Solution

The fourth proportional to 260,339.01, 390,104.60 and 180,532.64 is: 270,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,339.01 : 390,104.60 = 180,532.64 : x
  2. Step 2: Convert to fraction form
    260,339.01/390,104.60 = 180,532.64/x
  3. Step 3: Cross multiply
    260,339.01x = 390,104.60 × 180,532.64
  4. Step 4: Simplify right side
    260,339.01x = 70,426,612,411.48
  5. Step 5: Solve for x
    x = 70,426,612,411.48/260,339.01
  6. Step 6: Final answer
    x = 270,518.87

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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.