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Finding the Fourth Proportional to 260,103.02, 390,154.52 and 73,114.52

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Solution

The fourth proportional to 260,103.02, 390,154.52 and 73,114.52 is: 109,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,103.02 : 390,154.52 = 73,114.52 : x
  2. Step 2: Convert to fraction form
    260,103.02/390,154.52 = 73,114.52/x
  3. Step 3: Cross multiply
    260,103.02x = 390,154.52 × 73,114.52
  4. Step 4: Simplify right side
    260,103.02x = 28,525,960,455.63
  5. Step 5: Solve for x
    x = 28,525,960,455.63/260,103.02
  6. Step 6: Final answer
    x = 109,671.78

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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.