Home / 409,619.40-614,429.10-114,131.40

Finding the Fourth Proportional to 409,619.40, 614,429.10 and 114,131.40

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Solution

The fourth proportional to 409,619.40, 614,429.10 and 114,131.40 is: 171,197.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,619.40 : 614,429.10 = 114,131.40 : x
  2. Step 2: Convert to fraction form
    409,619.40/614,429.10 = 114,131.40/x
  3. Step 3: Cross multiply
    409,619.40x = 614,429.10 × 114,131.40
  4. Step 4: Simplify right side
    409,619.40x = 70,125,653,383.74
  5. Step 5: Solve for x
    x = 70,125,653,383.74/409,619.40
  6. Step 6: Final answer
    x = 171,197.10

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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.