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Finding the Fourth Proportional to 270,063.96, 405,139.86 and 83,075.64

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Solution

The fourth proportional to 270,063.96, 405,139.86 and 83,075.64 is: 124,626.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,063.96 : 405,139.86 = 83,075.64 : x
  2. Step 2: Convert to fraction form
    270,063.96/405,139.86 = 83,075.64/x
  3. Step 3: Cross multiply
    270,063.96x = 405,139.86 × 83,075.64
  4. Step 4: Simplify right side
    270,063.96x = 33,657,253,159.01
  5. Step 5: Solve for x
    x = 33,657,253,159.01/270,063.96
  6. Step 6: Final answer
    x = 124,626.97

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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.