Home / 428,173.93-590,875.03-231,936.72

Finding the Fourth Proportional to 428,173.93, 590,875.03 and 231,936.72

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Solution

The fourth proportional to 428,173.93, 590,875.03 and 231,936.72 is: 320,069.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,173.93 : 590,875.03 = 231,936.72 : x
  2. Step 2: Convert to fraction form
    428,173.93/590,875.03 = 231,936.72/x
  3. Step 3: Cross multiply
    428,173.93x = 590,875.03 × 231,936.72
  4. Step 4: Simplify right side
    428,173.93x = 137,045,614,462.24
  5. Step 5: Solve for x
    x = 137,045,614,462.24/428,173.93
  6. Step 6: Final answer
    x = 320,069.96

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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.