Home / 319,566.80-479,657.40-161,973.20

Finding the Fourth Proportional to 319,566.80, 479,657.40 and 161,973.20

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Solution

The fourth proportional to 319,566.80, 479,657.40 and 161,973.20 is: 243,115.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,566.80 : 479,657.40 = 161,973.20 : x
  2. Step 2: Convert to fraction form
    319,566.80/479,657.40 = 161,973.20/x
  3. Step 3: Cross multiply
    319,566.80x = 479,657.40 × 161,973.20
  4. Step 4: Simplify right side
    319,566.80x = 77,691,643,981.68
  5. Step 5: Solve for x
    x = 77,691,643,981.68/319,566.80
  6. Step 6: Final answer
    x = 243,115.51

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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.