Home / 393,365.12-542,929.84-250,097.18

Finding the Fourth Proportional to 393,365.12, 542,929.84 and 250,097.18

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Solution

The fourth proportional to 393,365.12, 542,929.84 and 250,097.18 is: 345,188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,365.12 : 542,929.84 = 250,097.18 : x
  2. Step 2: Convert to fraction form
    393,365.12/542,929.84 = 250,097.18/x
  3. Step 3: Cross multiply
    393,365.12x = 542,929.84 × 250,097.18
  4. Step 4: Simplify right side
    393,365.12x = 135,785,222,653.93
  5. Step 5: Solve for x
    x = 135,785,222,653.93/393,365.12
  6. Step 6: Final answer
    x = 345,188.77

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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.