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Finding the Fourth Proportional to 401,367.84, 553,888.40 and 222,519.84

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Solution

The fourth proportional to 401,367.84, 553,888.40 and 222,519.84 is: 307,077.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,367.84 : 553,888.40 = 222,519.84 : x
  2. Step 2: Convert to fraction form
    401,367.84/553,888.40 = 222,519.84/x
  3. Step 3: Cross multiply
    401,367.84x = 553,888.40 × 222,519.84
  4. Step 4: Simplify right side
    401,367.84x = 123,251,158,145.86
  5. Step 5: Solve for x
    x = 123,251,158,145.86/401,367.84
  6. Step 6: Final answer
    x = 307,077.81

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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.