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Finding the Fourth Proportional to 260,031.70, 390,047.55 and 227,890.90

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Solution

The fourth proportional to 260,031.70, 390,047.55 and 227,890.90 is: 341,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,031.70 : 390,047.55 = 227,890.90 : x
  2. Step 2: Convert to fraction form
    260,031.70/390,047.55 = 227,890.90/x
  3. Step 3: Cross multiply
    260,031.70x = 390,047.55 × 227,890.90
  4. Step 4: Simplify right side
    260,031.70x = 88,888,287,212.30
  5. Step 5: Solve for x
    x = 88,888,287,212.30/260,031.70
  6. Step 6: Final answer
    x = 341,836.35

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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.