Home / 310,495.20-428,358.96-195,736.08

Finding the Fourth Proportional to 310,495.20, 428,358.96 and 195,736.08

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Solution

The fourth proportional to 310,495.20, 428,358.96 and 195,736.08 is: 270,037.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,495.20 : 428,358.96 = 195,736.08 : x
  2. Step 2: Convert to fraction form
    310,495.20/428,358.96 = 195,736.08/x
  3. Step 3: Cross multiply
    310,495.20x = 428,358.96 × 195,736.08
  4. Step 4: Simplify right side
    310,495.20x = 83,845,303,663.28
  5. Step 5: Solve for x
    x = 83,845,303,663.28/310,495.20
  6. Step 6: Final answer
    x = 270,037.36

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1.5x scale

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.