Home / 310,784.60-428,727.48-196,205.24

Finding the Fourth Proportional to 310,784.60, 428,727.48 and 196,205.24

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Solution

The fourth proportional to 310,784.60, 428,727.48 and 196,205.24 is: 270,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,784.60 : 428,727.48 = 196,205.24 : x
  2. Step 2: Convert to fraction form
    310,784.60/428,727.48 = 196,205.24/x
  3. Step 3: Cross multiply
    310,784.60x = 428,727.48 × 196,205.24
  4. Step 4: Simplify right side
    310,784.60x = 84,118,578,108.00
  5. Step 5: Solve for x
    x = 84,118,578,108.00/310,784.60
  6. Step 6: Final answer
    x = 270,665.21

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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.