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Finding the Fourth Proportional to 400,901.88, 553,244.58 and 219,625.14

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Solution

The fourth proportional to 400,901.88, 553,244.58 and 219,625.14 is: 303,082.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,901.88 : 553,244.58 = 219,625.14 : x
  2. Step 2: Convert to fraction form
    400,901.88/553,244.58 = 219,625.14/x
  3. Step 3: Cross multiply
    400,901.88x = 553,244.58 × 219,625.14
  4. Step 4: Simplify right side
    400,901.88x = 121,506,418,336.74
  5. Step 5: Solve for x
    x = 121,506,418,336.74/400,901.88
  6. Step 6: Final answer
    x = 303,082.69

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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.