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Finding the Fourth Proportional to 454,595.25, 681,920.22 and 139,054.89

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Solution

The fourth proportional to 454,595.25, 681,920.22 and 139,054.89 is: 208,590.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,595.25 : 681,920.22 = 139,054.89 : x
  2. Step 2: Convert to fraction form
    454,595.25/681,920.22 = 139,054.89/x
  3. Step 3: Cross multiply
    454,595.25x = 681,920.22 × 139,054.89
  4. Step 4: Simplify right side
    454,595.25x = 94,824,341,180.88
  5. Step 5: Solve for x
    x = 94,824,341,180.88/454,595.25
  6. Step 6: Final answer
    x = 208,590.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.