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Finding the Fourth Proportional to 383,702.38, 529,502.04 and 211,636.36

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Solution

The fourth proportional to 383,702.38, 529,502.04 and 211,636.36 is: 292,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,702.38 : 529,502.04 = 211,636.36 : x
  2. Step 2: Convert to fraction form
    383,702.38/529,502.04 = 211,636.36/x
  3. Step 3: Cross multiply
    383,702.38x = 529,502.04 × 211,636.36
  4. Step 4: Simplify right side
    383,702.38x = 112,061,884,358.17
  5. Step 5: Solve for x
    x = 112,061,884,358.17/383,702.38
  6. Step 6: Final answer
    x = 292,054.18

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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.