Home / 378,276.28-522,090.66-242,368.81

Finding the Fourth Proportional to 378,276.28, 522,090.66 and 242,368.81

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Solution

The fourth proportional to 378,276.28, 522,090.66 and 242,368.81 is: 334,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,276.28 : 522,090.66 = 242,368.81 : x
  2. Step 2: Convert to fraction form
    378,276.28/522,090.66 = 242,368.81/x
  3. Step 3: Cross multiply
    378,276.28x = 522,090.66 × 242,368.81
  4. Step 4: Simplify right side
    378,276.28x = 126,538,491,579.97
  5. Step 5: Solve for x
    x = 126,538,491,579.97/378,276.28
  6. Step 6: Final answer
    x = 334,513.42

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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.