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Finding the Fourth Proportional to 310,682.10, 428,756.76 and 174,758.82

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Solution

The fourth proportional to 310,682.10, 428,756.76 and 174,758.82 is: 241,175.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,682.10 : 428,756.76 = 174,758.82 : x
  2. Step 2: Convert to fraction form
    310,682.10/428,756.76 = 174,758.82/x
  3. Step 3: Cross multiply
    310,682.10x = 428,756.76 × 174,758.82
  4. Step 4: Simplify right side
    310,682.10x = 74,929,025,444.62
  5. Step 5: Solve for x
    x = 74,929,025,444.62/310,682.10
  6. Step 6: Final answer
    x = 241,175.87

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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.