Home / 387,678.10-534,917.31-226,501.96

Finding the Fourth Proportional to 387,678.10, 534,917.31 and 226,501.96

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Solution

The fourth proportional to 387,678.10, 534,917.31 and 226,501.96 is: 312,526.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,678.10 : 534,917.31 = 226,501.96 : x
  2. Step 2: Convert to fraction form
    387,678.10/534,917.31 = 226,501.96/x
  3. Step 3: Cross multiply
    387,678.10x = 534,917.31 × 226,501.96
  4. Step 4: Simplify right side
    387,678.10x = 121,159,819,152.93
  5. Step 5: Solve for x
    x = 121,159,819,152.93/387,678.10
  6. Step 6: Final answer
    x = 312,526.86

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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.