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Finding the Fourth Proportional to 268,495.40, 402,282.30 and 127,951.40

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Solution

The fourth proportional to 268,495.40, 402,282.30 and 127,951.40 is: 191,707.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,495.40 : 402,282.30 = 127,951.40 : x
  2. Step 2: Convert to fraction form
    268,495.40/402,282.30 = 127,951.40/x
  3. Step 3: Cross multiply
    268,495.40x = 402,282.30 × 127,951.40
  4. Step 4: Simplify right side
    268,495.40x = 51,472,583,480.22
  5. Step 5: Solve for x
    x = 51,472,583,480.22/268,495.40
  6. Step 6: Final answer
    x = 191,707.51

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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.