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Finding the Fourth Proportional to 260,511.60, 390,767.40 and 73,523.10

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Solution

The fourth proportional to 260,511.60, 390,767.40 and 73,523.10 is: 110,284.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,511.60 : 390,767.40 = 73,523.10 : x
  2. Step 2: Convert to fraction form
    260,511.60/390,767.40 = 73,523.10/x
  3. Step 3: Cross multiply
    260,511.60x = 390,767.40 × 73,523.10
  4. Step 4: Simplify right side
    260,511.60x = 28,730,430,626.94
  5. Step 5: Solve for x
    x = 28,730,430,626.94/260,511.60
  6. Step 6: Final answer
    x = 110,284.65

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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.