Home / 400,425.36-552,586.92-219,137.40

Finding the Fourth Proportional to 400,425.36, 552,586.92 and 219,137.40

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Solution

The fourth proportional to 400,425.36, 552,586.92 and 219,137.40 is: 302,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,425.36 : 552,586.92 = 219,137.40 : x
  2. Step 2: Convert to fraction form
    400,425.36/552,586.92 = 219,137.40/x
  3. Step 3: Cross multiply
    400,425.36x = 552,586.92 × 219,137.40
  4. Step 4: Simplify right side
    400,425.36x = 121,092,460,922.81
  5. Step 5: Solve for x
    x = 121,092,460,922.81/400,425.36
  6. Step 6: Final answer
    x = 302,409.57

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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.