Home / 356,419.16-491,858.43-195,280.31

Finding the Fourth Proportional to 356,419.16, 491,858.43 and 195,280.31

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Solution

The fourth proportional to 356,419.16, 491,858.43 and 195,280.31 is: 269,486.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,419.16 : 491,858.43 = 195,280.31 : x
  2. Step 2: Convert to fraction form
    356,419.16/491,858.43 = 195,280.31/x
  3. Step 3: Cross multiply
    356,419.16x = 491,858.43 × 195,280.31
  4. Step 4: Simplify right side
    356,419.16x = 96,050,266,686.51
  5. Step 5: Solve for x
    x = 96,050,266,686.51/356,419.16
  6. Step 6: Final answer
    x = 269,486.82

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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.