Home / 205,929.80-308,376.30-135,427.40

Finding the Fourth Proportional to 205,929.80, 308,376.30 and 135,427.40

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Solution

The fourth proportional to 205,929.80, 308,376.30 and 135,427.40 is: 202,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,929.80 : 308,376.30 = 135,427.40 : x
  2. Step 2: Convert to fraction form
    205,929.80/308,376.30 = 135,427.40/x
  3. Step 3: Cross multiply
    205,929.80x = 308,376.30 × 135,427.40
  4. Step 4: Simplify right side
    205,929.80x = 41,762,600,530.62
  5. Step 5: Solve for x
    x = 41,762,600,530.62/205,929.80
  6. Step 6: Final answer
    x = 202,800.18

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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.