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Finding the Fourth Proportional to 260,094.60, 390,141.90 and 73,106.10

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Solution

The fourth proportional to 260,094.60, 390,141.90 and 73,106.10 is: 109,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,094.60 : 390,141.90 = 73,106.10 : x
  2. Step 2: Convert to fraction form
    260,094.60/390,141.90 = 73,106.10/x
  3. Step 3: Cross multiply
    260,094.60x = 390,141.90 × 73,106.10
  4. Step 4: Simplify right side
    260,094.60x = 28,521,752,755.59
  5. Step 5: Solve for x
    x = 28,521,752,755.59/260,094.60
  6. Step 6: Final answer
    x = 109,659.15

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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.