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Finding the Fourth Proportional to 260,544.40, 390,233.40 and 254,712.40

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Solution

The fourth proportional to 260,544.40, 390,233.40 and 254,712.40 is: 381,498.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,544.40 : 390,233.40 = 254,712.40 : x
  2. Step 2: Convert to fraction form
    260,544.40/390,233.40 = 254,712.40/x
  3. Step 3: Cross multiply
    260,544.40x = 390,233.40 × 254,712.40
  4. Step 4: Simplify right side
    260,544.40x = 99,397,285,874.16
  5. Step 5: Solve for x
    x = 99,397,285,874.16/260,544.40
  6. Step 6: Final answer
    x = 381,498.45

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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.