Home / 400,852.72-553,170.12-219,562.96

Finding the Fourth Proportional to 400,852.72, 553,170.12 and 219,562.96

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Solution

The fourth proportional to 400,852.72, 553,170.12 and 219,562.96 is: 302,993.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,852.72 : 553,170.12 = 219,562.96 : x
  2. Step 2: Convert to fraction form
    400,852.72/553,170.12 = 219,562.96/x
  3. Step 3: Cross multiply
    400,852.72x = 553,170.12 × 219,562.96
  4. Step 4: Simplify right side
    400,852.72x = 121,455,668,930.76
  5. Step 5: Solve for x
    x = 121,455,668,930.76/400,852.72
  6. Step 6: Final answer
    x = 302,993.25

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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.