Home / 401,515.35-554,091.98-220,228.76

Finding the Fourth Proportional to 401,515.35, 554,091.98 and 220,228.76

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Solution

The fourth proportional to 401,515.35, 554,091.98 and 220,228.76 is: 303,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,515.35 : 554,091.98 = 220,228.76 : x
  2. Step 2: Convert to fraction form
    401,515.35/554,091.98 = 220,228.76/x
  3. Step 3: Cross multiply
    401,515.35x = 554,091.98 × 220,228.76
  4. Step 4: Simplify right side
    401,515.35x = 122,026,985,809.74
  5. Step 5: Solve for x
    x = 122,026,985,809.74/401,515.35
  6. Step 6: Final answer
    x = 303,916.12

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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.