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Finding the Fourth Proportional to 264,338.92, 395,678.94 and 139,300.84

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Solution

The fourth proportional to 264,338.92, 395,678.94 and 139,300.84 is: 208,514.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,338.92 : 395,678.94 = 139,300.84 : x
  2. Step 2: Convert to fraction form
    264,338.92/395,678.94 = 139,300.84/x
  3. Step 3: Cross multiply
    264,338.92x = 395,678.94 × 139,300.84
  4. Step 4: Simplify right side
    264,338.92x = 55,118,408,712.31
  5. Step 5: Solve for x
    x = 55,118,408,712.31/264,338.92
  6. Step 6: Final answer
    x = 208,514.16

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1.5x scale

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.