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Finding the Fourth Proportional to 243,824.87, 336,491.39 and 136,388.50

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Solution

The fourth proportional to 243,824.87, 336,491.39 and 136,388.50 is: 188,223.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,824.87 : 336,491.39 = 136,388.50 : x
  2. Step 2: Convert to fraction form
    243,824.87/336,491.39 = 136,388.50/x
  3. Step 3: Cross multiply
    243,824.87x = 336,491.39 × 136,388.50
  4. Step 4: Simplify right side
    243,824.87x = 45,893,555,444.76
  5. Step 5: Solve for x
    x = 45,893,555,444.76/243,824.87
  6. Step 6: Final answer
    x = 188,223.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.