Home / 254,579.45-351,280.55-147,128.69

Finding the Fourth Proportional to 254,579.45, 351,280.55 and 147,128.69

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Solution

The fourth proportional to 254,579.45, 351,280.55 and 147,128.69 is: 203,014.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,579.45 : 351,280.55 = 147,128.69 : x
  2. Step 2: Convert to fraction form
    254,579.45/351,280.55 = 147,128.69/x
  3. Step 3: Cross multiply
    254,579.45x = 351,280.55 × 147,128.69
  4. Step 4: Simplify right side
    254,579.45x = 51,683,444,651.93
  5. Step 5: Solve for x
    x = 51,683,444,651.93/254,579.45
  6. Step 6: Final answer
    x = 203,014.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.