Home / 401,490.49-554,072.41-220,210.06

Finding the Fourth Proportional to 401,490.49, 554,072.41 and 220,210.06

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Solution

The fourth proportional to 401,490.49, 554,072.41 and 220,210.06 is: 303,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,490.49 : 554,072.41 = 220,210.06 : x
  2. Step 2: Convert to fraction form
    401,490.49/554,072.41 = 220,210.06/x
  3. Step 3: Cross multiply
    401,490.49x = 554,072.41 × 220,210.06
  4. Step 4: Simplify right side
    401,490.49x = 122,012,318,650.45
  5. Step 5: Solve for x
    x = 122,012,318,650.45/401,490.49
  6. Step 6: Final answer
    x = 303,898.40

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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.