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Finding the Fourth Proportional to 315,021.92, 434,714.47 and 179,037.90

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Solution

The fourth proportional to 315,021.92, 434,714.47 and 179,037.90 is: 247,063.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,021.92 : 434,714.47 = 179,037.90 : x
  2. Step 2: Convert to fraction form
    315,021.92/434,714.47 = 179,037.90/x
  3. Step 3: Cross multiply
    315,021.92x = 434,714.47 × 179,037.90
  4. Step 4: Simplify right side
    315,021.92x = 77,830,365,360.82
  5. Step 5: Solve for x
    x = 77,830,365,360.82/315,021.92
  6. Step 6: Final answer
    x = 247,063.34

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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.