Home / 457,278.93-685,953.88-137,405.83

Finding the Fourth Proportional to 457,278.93, 685,953.88 and 137,405.83

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Solution

The fourth proportional to 457,278.93, 685,953.88 and 137,405.83 is: 206,119.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,278.93 : 685,953.88 = 137,405.83 : x
  2. Step 2: Convert to fraction form
    457,278.93/685,953.88 = 137,405.83/x
  3. Step 3: Cross multiply
    457,278.93x = 685,953.88 × 137,405.83
  4. Step 4: Simplify right side
    457,278.93x = 94,254,062,223.79
  5. Step 5: Solve for x
    x = 94,254,062,223.79/457,278.93
  6. Step 6: Final answer
    x = 206,119.41

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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.