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Finding the Fourth Proportional to 268,409.50, 370,409.79 and 147,555.88

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Solution

The fourth proportional to 268,409.50, 370,409.79 and 147,555.88 is: 203,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,409.50 : 370,409.79 = 147,555.88 : x
  2. Step 2: Convert to fraction form
    268,409.50/370,409.79 = 147,555.88/x
  3. Step 3: Cross multiply
    268,409.50x = 370,409.79 × 147,555.88
  4. Step 4: Simplify right side
    268,409.50x = 54,656,142,524.07
  5. Step 5: Solve for x
    x = 54,656,142,524.07/268,409.50
  6. Step 6: Final answer
    x = 203,629.69

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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.