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Finding the Fourth Proportional to 363,594.84, 545,429.51 and 139,144.05

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Solution

The fourth proportional to 363,594.84, 545,429.51 and 139,144.05 is: 208,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,594.84 : 545,429.51 = 139,144.05 : x
  2. Step 2: Convert to fraction form
    363,594.84/545,429.51 = 139,144.05/x
  3. Step 3: Cross multiply
    363,594.84x = 545,429.51 × 139,144.05
  4. Step 4: Simplify right side
    363,594.84x = 75,893,270,315.20
  5. Step 5: Solve for x
    x = 75,893,270,315.20/363,594.84
  6. Step 6: Final answer
    x = 208,730.33

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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.