Home / 325,205.10-487,953.45-147,620.70

Finding the Fourth Proportional to 325,205.10, 487,953.45 and 147,620.70

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Solution

The fourth proportional to 325,205.10, 487,953.45 and 147,620.70 is: 221,497.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,205.10 : 487,953.45 = 147,620.70 : x
  2. Step 2: Convert to fraction form
    325,205.10/487,953.45 = 147,620.70/x
  3. Step 3: Cross multiply
    325,205.10x = 487,953.45 × 147,620.70
  4. Step 4: Simplify right side
    325,205.10x = 72,032,029,856.42
  5. Step 5: Solve for x
    x = 72,032,029,856.42/325,205.10
  6. Step 6: Final answer
    x = 221,497.23

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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.