Home / 387,795.12-534,977.64-226,656.96

Finding the Fourth Proportional to 387,795.12, 534,977.64 and 226,656.96

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Solution

The fourth proportional to 387,795.12, 534,977.64 and 226,656.96 is: 312,681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,795.12 : 534,977.64 = 226,656.96 : x
  2. Step 2: Convert to fraction form
    387,795.12/534,977.64 = 226,656.96/x
  3. Step 3: Cross multiply
    387,795.12x = 534,977.64 × 226,656.96
  4. Step 4: Simplify right side
    387,795.12x = 121,256,405,550.37
  5. Step 5: Solve for x
    x = 121,256,405,550.37/387,795.12
  6. Step 6: Final answer
    x = 312,681.62

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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.