Home / 296,780.28-409,698.78-169,431.24

Finding the Fourth Proportional to 296,780.28, 409,698.78 and 169,431.24

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Solution

The fourth proportional to 296,780.28, 409,698.78 and 169,431.24 is: 233,896.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,780.28 : 409,698.78 = 169,431.24 : x
  2. Step 2: Convert to fraction form
    296,780.28/409,698.78 = 169,431.24/x
  3. Step 3: Cross multiply
    296,780.28x = 409,698.78 × 169,431.24
  4. Step 4: Simplify right side
    296,780.28x = 69,415,772,321.89
  5. Step 5: Solve for x
    x = 69,415,772,321.89/296,780.28
  6. Step 6: Final answer
    x = 233,896.18

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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.