Home / 428,172.56-590,870.40-237,185.36

Finding the Fourth Proportional to 428,172.56, 590,870.40 and 237,185.36

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Solution

The fourth proportional to 428,172.56, 590,870.40 and 237,185.36 is: 327,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,172.56 : 590,870.40 = 237,185.36 : x
  2. Step 2: Convert to fraction form
    428,172.56/590,870.40 = 237,185.36/x
  3. Step 3: Cross multiply
    428,172.56x = 590,870.40 × 237,185.36
  4. Step 4: Simplify right side
    428,172.56x = 140,145,808,537.34
  5. Step 5: Solve for x
    x = 140,145,808,537.34/428,172.56
  6. Step 6: Final answer
    x = 327,311.51

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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.