Home / 400,875.62-553,188.68-219,588.34

Finding the Fourth Proportional to 400,875.62, 553,188.68 and 219,588.34

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Solution

The fourth proportional to 400,875.62, 553,188.68 and 219,588.34 is: 303,021.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,875.62 : 553,188.68 = 219,588.34 : x
  2. Step 2: Convert to fraction form
    400,875.62/553,188.68 = 219,588.34/x
  3. Step 3: Cross multiply
    400,875.62x = 553,188.68 × 219,588.34
  4. Step 4: Simplify right side
    400,875.62x = 121,473,783,947.99
  5. Step 5: Solve for x
    x = 121,473,783,947.99/400,875.62
  6. Step 6: Final answer
    x = 303,021.13

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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.