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Finding the Fourth Proportional to 453,698.42, 680,495.79 and 121,300.34

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Solution

The fourth proportional to 453,698.42, 680,495.79 and 121,300.34 is: 181,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,698.42 : 680,495.79 = 121,300.34 : x
  2. Step 2: Convert to fraction form
    453,698.42/680,495.79 = 121,300.34/x
  3. Step 3: Cross multiply
    453,698.42x = 680,495.79 × 121,300.34
  4. Step 4: Simplify right side
    453,698.42x = 82,544,370,695.57
  5. Step 5: Solve for x
    x = 82,544,370,695.57/453,698.42
  6. Step 6: Final answer
    x = 181,936.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.