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Finding the Fourth Proportional to 260,014.08, 390,035.70 and 73,011

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Solution

The fourth proportional to 260,014.08, 390,035.70 and 73,011 is: 109,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,014.08 : 390,035.70 = 73,011 : x
  2. Step 2: Convert to fraction form
    260,014.08/390,035.70 = 73,011/x
  3. Step 3: Cross multiply
    260,014.08x = 390,035.70 × 73,011
  4. Step 4: Simplify right side
    260,014.08x = 28,476,896,492.70
  5. Step 5: Solve for x
    x = 28,476,896,492.70/260,014.08
  6. Step 6: Final answer
    x = 109,520.59

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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.