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Finding the Fourth Proportional to 286,179.33, 394,702.13 and 253,508.69

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Solution

The fourth proportional to 286,179.33, 394,702.13 and 253,508.69 is: 349,642.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,179.33 : 394,702.13 = 253,508.69 : x
  2. Step 2: Convert to fraction form
    286,179.33/394,702.13 = 253,508.69/x
  3. Step 3: Cross multiply
    286,179.33x = 394,702.13 × 253,508.69
  4. Step 4: Simplify right side
    286,179.33x = 100,060,416,675.46
  5. Step 5: Solve for x
    x = 100,060,416,675.46/286,179.33
  6. Step 6: Final answer
    x = 349,642.36

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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.