Home / 224,359.77-309,669.63-128,921.83

Finding the Fourth Proportional to 224,359.77, 309,669.63 and 128,921.83

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Solution

The fourth proportional to 224,359.77, 309,669.63 and 128,921.83 is: 177,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,359.77 : 309,669.63 = 128,921.83 : x
  2. Step 2: Convert to fraction form
    224,359.77/309,669.63 = 128,921.83/x
  3. Step 3: Cross multiply
    224,359.77x = 309,669.63 × 128,921.83
  4. Step 4: Simplify right side
    224,359.77x = 39,923,174,862.58
  5. Step 5: Solve for x
    x = 39,923,174,862.58/224,359.77
  6. Step 6: Final answer
    x = 177,942.66

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1.5x scale

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.