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Finding the Fourth Proportional to 400,833.29, 553,150.01 and 219,551.71

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Solution

The fourth proportional to 400,833.29, 553,150.01 and 219,551.71 is: 302,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,833.29 : 553,150.01 = 219,551.71 : x
  2. Step 2: Convert to fraction form
    400,833.29/553,150.01 = 219,551.71/x
  3. Step 3: Cross multiply
    400,833.29x = 553,150.01 × 219,551.71
  4. Step 4: Simplify right side
    400,833.29x = 121,445,029,760.78
  5. Step 5: Solve for x
    x = 121,445,029,760.78/400,833.29
  6. Step 6: Final answer
    x = 302,981.40

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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.