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Finding the Fourth Proportional to 331,673.88, 457,710.12 and 188,434.20

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Solution

The fourth proportional to 331,673.88, 457,710.12 and 188,434.20 is: 260,039.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,673.88 : 457,710.12 = 188,434.20 : x
  2. Step 2: Convert to fraction form
    331,673.88/457,710.12 = 188,434.20/x
  3. Step 3: Cross multiply
    331,673.88x = 457,710.12 × 188,434.20
  4. Step 4: Simplify right side
    331,673.88x = 86,248,240,294.10
  5. Step 5: Solve for x
    x = 86,248,240,294.10/331,673.88
  6. Step 6: Final answer
    x = 260,039.29

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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.