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Finding the Fourth Proportional to 219,071.40, 328,582.80 and 179,559.60

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Solution

The fourth proportional to 219,071.40, 328,582.80 and 179,559.60 is: 269,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,071.40 : 328,582.80 = 179,559.60 : x
  2. Step 2: Convert to fraction form
    219,071.40/328,582.80 = 179,559.60/x
  3. Step 3: Cross multiply
    219,071.40x = 328,582.80 × 179,559.60
  4. Step 4: Simplify right side
    219,071.40x = 59,000,196,134.88
  5. Step 5: Solve for x
    x = 59,000,196,134.88/219,071.40
  6. Step 6: Final answer
    x = 269,319.48

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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.