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Finding the Fourth Proportional to 401,331, 553,923.18 and 240,222

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Solution

The fourth proportional to 401,331, 553,923.18 and 240,222 is: 331,558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,331 : 553,923.18 = 240,222 : x
  2. Step 2: Convert to fraction form
    401,331/553,923.18 = 240,222/x
  3. Step 3: Cross multiply
    401,331x = 553,923.18 × 240,222
  4. Step 4: Simplify right side
    401,331x = 133,064,534,145.96
  5. Step 5: Solve for x
    x = 133,064,534,145.96/401,331
  6. Step 6: Final answer
    x = 331,558.08

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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.