Home / 305,433.78-457,966.59-136,923.60

Finding the Fourth Proportional to 305,433.78, 457,966.59 and 136,923.60

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Solution

The fourth proportional to 305,433.78, 457,966.59 and 136,923.60 is: 205,302.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,433.78 : 457,966.59 = 136,923.60 : x
  2. Step 2: Convert to fraction form
    305,433.78/457,966.59 = 136,923.60/x
  3. Step 3: Cross multiply
    305,433.78x = 457,966.59 × 136,923.60
  4. Step 4: Simplify right side
    305,433.78x = 62,706,434,182.52
  5. Step 5: Solve for x
    x = 62,706,434,182.52/305,433.78
  6. Step 6: Final answer
    x = 205,302.88

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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.