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Finding the Fourth Proportional to 310,551.57, 428,576.37 and 174,628.31

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Solution

The fourth proportional to 310,551.57, 428,576.37 and 174,628.31 is: 240,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,551.57 : 428,576.37 = 174,628.31 : x
  2. Step 2: Convert to fraction form
    310,551.57/428,576.37 = 174,628.31/x
  3. Step 3: Cross multiply
    310,551.57x = 428,576.37 × 174,628.31
  4. Step 4: Simplify right side
    310,551.57x = 74,841,564,401.30
  5. Step 5: Solve for x
    x = 74,841,564,401.30/310,551.57
  6. Step 6: Final answer
    x = 240,995.61

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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.