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Finding the Fourth Proportional to 268,051.68, 402,077.76 and 81,063.36

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Solution

The fourth proportional to 268,051.68, 402,077.76 and 81,063.36 is: 121,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,051.68 : 402,077.76 = 81,063.36 : x
  2. Step 2: Convert to fraction form
    268,051.68/402,077.76 = 81,063.36/x
  3. Step 3: Cross multiply
    268,051.68x = 402,077.76 × 81,063.36
  4. Step 4: Simplify right side
    268,051.68x = 32,593,774,206.87
  5. Step 5: Solve for x
    x = 32,593,774,206.87/268,051.68
  6. Step 6: Final answer
    x = 121,595.11

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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.