Home / 291,939.07-402,722.94-253,612.57

Finding the Fourth Proportional to 291,939.07, 402,722.94 and 253,612.57

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Solution

The fourth proportional to 291,939.07, 402,722.94 and 253,612.57 is: 349,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,939.07 : 402,722.94 = 253,612.57 : x
  2. Step 2: Convert to fraction form
    291,939.07/402,722.94 = 253,612.57/x
  3. Step 3: Cross multiply
    291,939.07x = 402,722.94 × 253,612.57
  4. Step 4: Simplify right side
    291,939.07x = 102,135,597,797.74
  5. Step 5: Solve for x
    x = 102,135,597,797.74/291,939.07
  6. Step 6: Final answer
    x = 349,852.45

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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.