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Finding the Fourth Proportional to 279,999.08, 386,400.48 and 152,676.80

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Solution

The fourth proportional to 279,999.08, 386,400.48 and 152,676.80 is: 210,694.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,999.08 : 386,400.48 = 152,676.80 : x
  2. Step 2: Convert to fraction form
    279,999.08/386,400.48 = 152,676.80/x
  3. Step 3: Cross multiply
    279,999.08x = 386,400.48 × 152,676.80
  4. Step 4: Simplify right side
    279,999.08x = 58,994,388,804.86
  5. Step 5: Solve for x
    x = 58,994,388,804.86/279,999.08
  6. Step 6: Final answer
    x = 210,694.94

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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.