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Finding the Fourth Proportional to 305,484.78, 457,614 and 155,719.02

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Solution

The fourth proportional to 305,484.78, 457,614 and 155,719.02 is: 233,265.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,484.78 : 457,614 = 155,719.02 : x
  2. Step 2: Convert to fraction form
    305,484.78/457,614 = 155,719.02/x
  3. Step 3: Cross multiply
    305,484.78x = 457,614 × 155,719.02
  4. Step 4: Simplify right side
    305,484.78x = 71,259,203,618.28
  5. Step 5: Solve for x
    x = 71,259,203,618.28/305,484.78
  6. Step 6: Final answer
    x = 233,265.97

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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.