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Finding the Fourth Proportional to 208,359.60, 312,418.68 and 183,449.70

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Solution

The fourth proportional to 208,359.60, 312,418.68 and 183,449.70 is: 275,068.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,359.60 : 312,418.68 = 183,449.70 : x
  2. Step 2: Convert to fraction form
    208,359.60/312,418.68 = 183,449.70/x
  3. Step 3: Cross multiply
    208,359.60x = 312,418.68 × 183,449.70
  4. Step 4: Simplify right side
    208,359.60x = 57,313,113,120.40
  5. Step 5: Solve for x
    x = 57,313,113,120.40/208,359.60
  6. Step 6: Final answer
    x = 275,068.26

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1.5x scale

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.