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Finding the Fourth Proportional to 304,669.86, 420,439.26 and 168,700.86

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Solution

The fourth proportional to 304,669.86, 420,439.26 and 168,700.86 is: 232,804.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,669.86 : 420,439.26 = 168,700.86 : x
  2. Step 2: Convert to fraction form
    304,669.86/420,439.26 = 168,700.86/x
  3. Step 3: Cross multiply
    304,669.86x = 420,439.26 × 168,700.86
  4. Step 4: Simplify right side
    304,669.86x = 70,928,464,739.76
  5. Step 5: Solve for x
    x = 70,928,464,739.76/304,669.86
  6. Step 6: Final answer
    x = 232,804.34

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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.