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Finding the Fourth Proportional to 401,605.92, 554,223.56 and 220,327.12

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Solution

The fourth proportional to 401,605.92, 554,223.56 and 220,327.12 is: 304,055.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,605.92 : 554,223.56 = 220,327.12 : x
  2. Step 2: Convert to fraction form
    401,605.92/554,223.56 = 220,327.12/x
  3. Step 3: Cross multiply
    401,605.92x = 554,223.56 × 220,327.12
  4. Step 4: Simplify right side
    401,605.92x = 122,110,480,810.95
  5. Step 5: Solve for x
    x = 122,110,480,810.95/401,605.92
  6. Step 6: Final answer
    x = 304,055.48

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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.