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Finding the Fourth Proportional to 272,281.60, 408,519.60 and 114,558.40

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Solution

The fourth proportional to 272,281.60, 408,519.60 and 114,558.40 is: 171,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,281.60 : 408,519.60 = 114,558.40 : x
  2. Step 2: Convert to fraction form
    272,281.60/408,519.60 = 114,558.40/x
  3. Step 3: Cross multiply
    272,281.60x = 408,519.60 × 114,558.40
  4. Step 4: Simplify right side
    272,281.60x = 46,799,351,744.64
  5. Step 5: Solve for x
    x = 46,799,351,744.64/272,281.60
  6. Step 6: Final answer
    x = 171,878.50

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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.