Home / 400,642.27-552,886.36-219,354.21

Finding the Fourth Proportional to 400,642.27, 552,886.36 and 219,354.21

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Solution

The fourth proportional to 400,642.27, 552,886.36 and 219,354.21 is: 302,708.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,642.27 : 552,886.36 = 219,354.21 : x
  2. Step 2: Convert to fraction form
    400,642.27/552,886.36 = 219,354.21/x
  3. Step 3: Cross multiply
    400,642.27x = 552,886.36 × 219,354.21
  4. Step 4: Simplify right side
    400,642.27x = 121,277,950,169.19
  5. Step 5: Solve for x
    x = 121,277,950,169.19/400,642.27
  6. Step 6: Final answer
    x = 302,708.83

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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.