Home / 378,276.39-521,726.07-242,322.96

Finding the Fourth Proportional to 378,276.39, 521,726.07 and 242,322.96

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Solution

The fourth proportional to 378,276.39, 521,726.07 and 242,322.96 is: 334,216.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,276.39 : 521,726.07 = 242,322.96 : x
  2. Step 2: Convert to fraction form
    378,276.39/521,726.07 = 242,322.96/x
  3. Step 3: Cross multiply
    378,276.39x = 521,726.07 × 242,322.96
  4. Step 4: Simplify right side
    378,276.39x = 126,426,205,591.57
  5. Step 5: Solve for x
    x = 126,426,205,591.57/378,276.39
  6. Step 6: Final answer
    x = 334,216.49

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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.