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Finding the Fourth Proportional to 260,103.34, 390,155.00 and 73,114.84

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Solution

The fourth proportional to 260,103.34, 390,155.00 and 73,114.84 is: 109,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,103.34 : 390,155.00 = 73,114.84 : x
  2. Step 2: Convert to fraction form
    260,103.34/390,155.00 = 73,114.84/x
  3. Step 3: Cross multiply
    260,103.34x = 390,155.00 × 73,114.84
  4. Step 4: Simplify right side
    260,103.34x = 28,526,118,083.85
  5. Step 5: Solve for x
    x = 28,526,118,083.85/260,103.34
  6. Step 6: Final answer
    x = 109,672.25

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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.