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Finding the Fourth Proportional to 260,335.79, 390,099.77 and 180,529.43

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Solution

The fourth proportional to 260,335.79, 390,099.77 and 180,529.43 is: 270,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,335.79 : 390,099.77 = 180,529.43 : x
  2. Step 2: Convert to fraction form
    260,335.79/390,099.77 = 180,529.43/x
  3. Step 3: Cross multiply
    260,335.79x = 390,099.77 × 180,529.43
  4. Step 4: Simplify right side
    260,335.79x = 70,424,486,268.09
  5. Step 5: Solve for x
    x = 70,424,486,268.09/260,335.79
  6. Step 6: Final answer
    x = 270,514.05

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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.