Home / 305,040.47-457,558.38-91,807.47

Finding the Fourth Proportional to 305,040.47, 457,558.38 and 91,807.47

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Solution

The fourth proportional to 305,040.47, 457,558.38 and 91,807.47 is: 137,710.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,040.47 : 457,558.38 = 91,807.47 : x
  2. Step 2: Convert to fraction form
    305,040.47/457,558.38 = 91,807.47/x
  3. Step 3: Cross multiply
    305,040.47x = 457,558.38 × 91,807.47
  4. Step 4: Simplify right side
    305,040.47x = 42,007,277,245.10
  5. Step 5: Solve for x
    x = 42,007,277,245.10/305,040.47
  6. Step 6: Final answer
    x = 137,710.51

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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.