Home / 309,623.07-427,283.37-171,804.50

Finding the Fourth Proportional to 309,623.07, 427,283.37 and 171,804.50

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Solution

The fourth proportional to 309,623.07, 427,283.37 and 171,804.50 is: 237,092.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,623.07 : 427,283.37 = 171,804.50 : x
  2. Step 2: Convert to fraction form
    309,623.07/427,283.37 = 171,804.50/x
  3. Step 3: Cross multiply
    309,623.07x = 427,283.37 × 171,804.50
  4. Step 4: Simplify right side
    309,623.07x = 73,409,203,604.75
  5. Step 5: Solve for x
    x = 73,409,203,604.75/309,623.07
  6. Step 6: Final answer
    x = 237,092.16

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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.