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Finding the Fourth Proportional to 238,643.27, 329,328.95 and 131,220.22

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Solution

The fourth proportional to 238,643.27, 329,328.95 and 131,220.22 is: 181,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,643.27 : 329,328.95 = 131,220.22 : x
  2. Step 2: Convert to fraction form
    238,643.27/329,328.95 = 131,220.22/x
  3. Step 3: Cross multiply
    238,643.27x = 329,328.95 × 131,220.22
  4. Step 4: Simplify right side
    238,643.27x = 43,214,617,271.37
  5. Step 5: Solve for x
    x = 43,214,617,271.37/238,643.27
  6. Step 6: Final answer
    x = 181,084.58

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1.5x scale

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.