Home / 457,080.15-685,357.68-243,585.21

Finding the Fourth Proportional to 457,080.15, 685,357.68 and 243,585.21

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Solution

The fourth proportional to 457,080.15, 685,357.68 and 243,585.21 is: 365,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,080.15 : 685,357.68 = 243,585.21 : x
  2. Step 2: Convert to fraction form
    457,080.15/685,357.68 = 243,585.21/x
  3. Step 3: Cross multiply
    457,080.15x = 685,357.68 × 243,585.21
  4. Step 4: Simplify right side
    457,080.15x = 166,942,994,407.91
  5. Step 5: Solve for x
    x = 166,942,994,407.91/457,080.15
  6. Step 6: Final answer
    x = 365,237.90

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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.