Home / 205,827.30-308,740.95-172,001.70

Finding the Fourth Proportional to 205,827.30, 308,740.95 and 172,001.70

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Solution

The fourth proportional to 205,827.30, 308,740.95 and 172,001.70 is: 258,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,827.30 : 308,740.95 = 172,001.70 : x
  2. Step 2: Convert to fraction form
    205,827.30/308,740.95 = 172,001.70/x
  3. Step 3: Cross multiply
    205,827.30x = 308,740.95 × 172,001.70
  4. Step 4: Simplify right side
    205,827.30x = 53,103,968,259.62
  5. Step 5: Solve for x
    x = 53,103,968,259.62/205,827.30
  6. Step 6: Final answer
    x = 258,002.55

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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.