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Finding the Fourth Proportional to 352,640.64, 486,634.56 and 191,488.32

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Solution

The fourth proportional to 352,640.64, 486,634.56 and 191,488.32 is: 264,248.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,640.64 : 486,634.56 = 191,488.32 : x
  2. Step 2: Convert to fraction form
    352,640.64/486,634.56 = 191,488.32/x
  3. Step 3: Cross multiply
    352,640.64x = 486,634.56 × 191,488.32
  4. Step 4: Simplify right side
    352,640.64x = 93,184,834,348.34
  5. Step 5: Solve for x
    x = 93,184,834,348.34/352,640.64
  6. Step 6: Final answer
    x = 264,248.71

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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.