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Finding the Fourth Proportional to 401,578.44, 554,085.22 and 240,372.20

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Solution

The fourth proportional to 401,578.44, 554,085.22 and 240,372.20 is: 331,657.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,578.44 : 554,085.22 = 240,372.20 : x
  2. Step 2: Convert to fraction form
    401,578.44/554,085.22 = 240,372.20/x
  3. Step 3: Cross multiply
    401,578.44x = 554,085.22 × 240,372.20
  4. Step 4: Simplify right side
    401,578.44x = 133,186,683,318.88
  5. Step 5: Solve for x
    x = 133,186,683,318.88/401,578.44
  6. Step 6: Final answer
    x = 331,657.95

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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.