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Finding the Fourth Proportional to 245,898.40, 368,847.60 and 219,326.35

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Solution

The fourth proportional to 245,898.40, 368,847.60 and 219,326.35 is: 328,989.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,898.40 : 368,847.60 = 219,326.35 : x
  2. Step 2: Convert to fraction form
    245,898.40/368,847.60 = 219,326.35/x
  3. Step 3: Cross multiply
    245,898.40x = 368,847.60 × 219,326.35
  4. Step 4: Simplify right side
    245,898.40x = 80,897,997,814.26
  5. Step 5: Solve for x
    x = 80,897,997,814.26/245,898.40
  6. Step 6: Final answer
    x = 328,989.53

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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.