Home / 223,977.24-309,076.02-128,475

Finding the Fourth Proportional to 223,977.24, 309,076.02 and 128,475

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Solution

The fourth proportional to 223,977.24, 309,076.02 and 128,475 is: 177,288.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,977.24 : 309,076.02 = 128,475 : x
  2. Step 2: Convert to fraction form
    223,977.24/309,076.02 = 128,475/x
  3. Step 3: Cross multiply
    223,977.24x = 309,076.02 × 128,475
  4. Step 4: Simplify right side
    223,977.24x = 39,708,541,669.50
  5. Step 5: Solve for x
    x = 39,708,541,669.50/223,977.24
  6. Step 6: Final answer
    x = 177,288.29

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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.