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Finding the Fourth Proportional to 401,527.98, 554,124.11 and 220,247.55

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Solution

The fourth proportional to 401,527.98, 554,124.11 and 220,247.55 is: 303,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,527.98 : 554,124.11 = 220,247.55 : x
  2. Step 2: Convert to fraction form
    401,527.98/554,124.11 = 220,247.55/x
  3. Step 3: Cross multiply
    401,527.98x = 554,124.11 × 220,247.55
  4. Step 4: Simplify right side
    401,527.98x = 122,044,476,522.19
  5. Step 5: Solve for x
    x = 122,044,476,522.19/401,527.98
  6. Step 6: Final answer
    x = 303,950.12

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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.