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Finding the Fourth Proportional to 303,159.48, 454,335.14 and 143,277.86

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Solution

The fourth proportional to 303,159.48, 454,335.14 and 143,277.86 is: 214,725.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,159.48 : 454,335.14 = 143,277.86 : x
  2. Step 2: Convert to fraction form
    303,159.48/454,335.14 = 143,277.86/x
  3. Step 3: Cross multiply
    303,159.48x = 454,335.14 × 143,277.86
  4. Step 4: Simplify right side
    303,159.48x = 65,096,168,076.03
  5. Step 5: Solve for x
    x = 65,096,168,076.03/303,159.48
  6. Step 6: Final answer
    x = 214,725.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.