Home / 356,507.06-491,979.75-195,368.45

Finding the Fourth Proportional to 356,507.06, 491,979.75 and 195,368.45

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Solution

The fourth proportional to 356,507.06, 491,979.75 and 195,368.45 is: 269,608.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,507.06 : 491,979.75 = 195,368.45 : x
  2. Step 2: Convert to fraction form
    356,507.06/491,979.75 = 195,368.45/x
  3. Step 3: Cross multiply
    356,507.06x = 491,979.75 × 195,368.45
  4. Step 4: Simplify right side
    356,507.06x = 96,117,323,151.47
  5. Step 5: Solve for x
    x = 96,117,323,151.47/356,507.06
  6. Step 6: Final answer
    x = 269,608.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.