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Finding the Fourth Proportional to 219,862.20, 308,740.20 and 219,862.20

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Solution

The fourth proportional to 219,862.20, 308,740.20 and 219,862.20 is: 308,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,862.20 : 308,740.20 = 219,862.20 : x
  2. Step 2: Convert to fraction form
    219,862.20/308,740.20 = 219,862.20/x
  3. Step 3: Cross multiply
    219,862.20x = 308,740.20 × 219,862.20
  4. Step 4: Simplify right side
    219,862.20x = 67,880,299,600.44
  5. Step 5: Solve for x
    x = 67,880,299,600.44/219,862.20
  6. Step 6: Final answer
    x = 308,740.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.