Home / 310,561.38-428,521.20-174,576.48

Finding the Fourth Proportional to 310,561.38, 428,521.20 and 174,576.48

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Solution

The fourth proportional to 310,561.38, 428,521.20 and 174,576.48 is: 240,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,561.38 : 428,521.20 = 174,576.48 : x
  2. Step 2: Convert to fraction form
    310,561.38/428,521.20 = 174,576.48/x
  3. Step 3: Cross multiply
    310,561.38x = 428,521.20 × 174,576.48
  4. Step 4: Simplify right side
    310,561.38x = 74,809,722,701.38
  5. Step 5: Solve for x
    x = 74,809,722,701.38/310,561.38
  6. Step 6: Final answer
    x = 240,885.47

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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.