Home / 305,087.10-457,703.55-147,185.70

Finding the Fourth Proportional to 305,087.10, 457,703.55 and 147,185.70

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Solution

The fourth proportional to 305,087.10, 457,703.55 and 147,185.70 is: 220,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,087.10 : 457,703.55 = 147,185.70 : x
  2. Step 2: Convert to fraction form
    305,087.10/457,703.55 = 147,185.70/x
  3. Step 3: Cross multiply
    305,087.10x = 457,703.55 × 147,185.70
  4. Step 4: Simplify right side
    305,087.10x = 67,367,417,399.24
  5. Step 5: Solve for x
    x = 67,367,417,399.24/305,087.10
  6. Step 6: Final answer
    x = 220,813.72

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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.