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Finding the Fourth Proportional to 401,699.96, 554,327.39 and 220,407.38

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Solution

The fourth proportional to 401,699.96, 554,327.39 and 220,407.38 is: 304,152.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,699.96 : 554,327.39 = 220,407.38 : x
  2. Step 2: Convert to fraction form
    401,699.96/554,327.39 = 220,407.38/x
  3. Step 3: Cross multiply
    401,699.96x = 554,327.39 × 220,407.38
  4. Step 4: Simplify right side
    401,699.96x = 122,177,844,920.50
  5. Step 5: Solve for x
    x = 122,177,844,920.50/401,699.96
  6. Step 6: Final answer
    x = 304,152.00

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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.