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Finding the Fourth Proportional to 223,323.30, 334,466.55 and 218,139.30

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Solution

The fourth proportional to 223,323.30, 334,466.55 and 218,139.30 is: 326,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,323.30 : 334,466.55 = 218,139.30 : x
  2. Step 2: Convert to fraction form
    223,323.30/334,466.55 = 218,139.30/x
  3. Step 3: Cross multiply
    223,323.30x = 334,466.55 × 218,139.30
  4. Step 4: Simplify right side
    223,323.30x = 72,960,299,090.42
  5. Step 5: Solve for x
    x = 72,960,299,090.42/223,323.30
  6. Step 6: Final answer
    x = 326,702.58

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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.