Home / 205,847.04-308,955.08-172,322.90

Finding the Fourth Proportional to 205,847.04, 308,955.08 and 172,322.90

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Solution

The fourth proportional to 205,847.04, 308,955.08 and 172,322.90 is: 258,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,847.04 : 308,955.08 = 172,322.90 : x
  2. Step 2: Convert to fraction form
    205,847.04/308,955.08 = 172,322.90/x
  3. Step 3: Cross multiply
    205,847.04x = 308,955.08 × 172,322.90
  4. Step 4: Simplify right side
    205,847.04x = 53,240,035,399.95
  5. Step 5: Solve for x
    x = 53,240,035,399.95/205,847.04
  6. Step 6: Final answer
    x = 258,638.81

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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.