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Finding the Fourth Proportional to 405,993.50, 560,233.08 and 242,617.59

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Solution

The fourth proportional to 405,993.50, 560,233.08 and 242,617.59 is: 334,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,993.50 : 560,233.08 = 242,617.59 : x
  2. Step 2: Convert to fraction form
    405,993.50/560,233.08 = 242,617.59/x
  3. Step 3: Cross multiply
    405,993.50x = 560,233.08 × 242,617.59
  4. Step 4: Simplify right side
    405,993.50x = 135,922,399,707.88
  5. Step 5: Solve for x
    x = 135,922,399,707.88/405,993.50
  6. Step 6: Final answer
    x = 334,789.60

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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.