Home / 238,643.40-329,329.13-131,220.35

Finding the Fourth Proportional to 238,643.40, 329,329.13 and 131,220.35

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Solution

The fourth proportional to 238,643.40, 329,329.13 and 131,220.35 is: 181,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,643.40 : 329,329.13 = 131,220.35 : x
  2. Step 2: Convert to fraction form
    238,643.40/329,329.13 = 131,220.35/x
  3. Step 3: Cross multiply
    238,643.40x = 329,329.13 × 131,220.35
  4. Step 4: Simplify right side
    238,643.40x = 43,214,683,047.69
  5. Step 5: Solve for x
    x = 43,214,683,047.69/238,643.40
  6. Step 6: Final answer
    x = 181,084.76

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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.