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Finding the Fourth Proportional to 260,104.98, 390,157.47 and 73,116.48

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Solution

The fourth proportional to 260,104.98, 390,157.47 and 73,116.48 is: 109,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,104.98 : 390,157.47 = 73,116.48 : x
  2. Step 2: Convert to fraction form
    260,104.98/390,157.47 = 73,116.48/x
  3. Step 3: Cross multiply
    260,104.98x = 390,157.47 × 73,116.48
  4. Step 4: Simplify right side
    260,104.98x = 28,526,940,852.11
  5. Step 5: Solve for x
    x = 28,526,940,852.11/260,104.98
  6. Step 6: Final answer
    x = 109,674.72

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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.