Home / 378,195.48-521,707.03-242,082.98

Finding the Fourth Proportional to 378,195.48, 521,707.03 and 242,082.98

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Solution

The fourth proportional to 378,195.48, 521,707.03 and 242,082.98 is: 333,944.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,195.48 : 521,707.03 = 242,082.98 : x
  2. Step 2: Convert to fraction form
    378,195.48/521,707.03 = 242,082.98/x
  3. Step 3: Cross multiply
    378,195.48x = 521,707.03 × 242,082.98
  4. Step 4: Simplify right side
    378,195.48x = 126,296,391,252.01
  5. Step 5: Solve for x
    x = 126,296,391,252.01/378,195.48
  6. Step 6: Final answer
    x = 333,944.74

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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.