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Finding the Fourth Proportional to 535,880.40, 803,820.60 and 220,563.60

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Solution

The fourth proportional to 535,880.40, 803,820.60 and 220,563.60 is: 330,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,880.40 : 803,820.60 = 220,563.60 : x
  2. Step 2: Convert to fraction form
    535,880.40/803,820.60 = 220,563.60/x
  3. Step 3: Cross multiply
    535,880.40x = 803,820.60 × 220,563.60
  4. Step 4: Simplify right side
    535,880.40x = 177,293,565,290.16
  5. Step 5: Solve for x
    x = 177,293,565,290.16/535,880.40
  6. Step 6: Final answer
    x = 330,845.40

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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.