Home / 205,506.20-308,259.30-57,762.20

Finding the Fourth Proportional to 205,506.20, 308,259.30 and 57,762.20

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Solution

The fourth proportional to 205,506.20, 308,259.30 and 57,762.20 is: 86,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,506.20 : 308,259.30 = 57,762.20 : x
  2. Step 2: Convert to fraction form
    205,506.20/308,259.30 = 57,762.20/x
  3. Step 3: Cross multiply
    205,506.20x = 308,259.30 × 57,762.20
  4. Step 4: Simplify right side
    205,506.20x = 17,805,735,338.46
  5. Step 5: Solve for x
    x = 17,805,735,338.46/205,506.20
  6. Step 6: Final answer
    x = 86,643.30

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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.