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Finding the Fourth Proportional to 260,508.54, 390,708.13 and 73,476.30

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Solution

The fourth proportional to 260,508.54, 390,708.13 and 73,476.30 is: 110,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,508.54 : 390,708.13 = 73,476.30 : x
  2. Step 2: Convert to fraction form
    260,508.54/390,708.13 = 73,476.30/x
  3. Step 3: Cross multiply
    260,508.54x = 390,708.13 × 73,476.30
  4. Step 4: Simplify right side
    260,508.54x = 28,707,787,200.47
  5. Step 5: Solve for x
    x = 28,707,787,200.47/260,508.54
  6. Step 6: Final answer
    x = 110,199.03

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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.