Home / 237,708.45-328,037.02-128,815.81

Finding the Fourth Proportional to 237,708.45, 328,037.02 and 128,815.81

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Solution

The fourth proportional to 237,708.45, 328,037.02 and 128,815.81 is: 177,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,708.45 : 328,037.02 = 128,815.81 : x
  2. Step 2: Convert to fraction form
    237,708.45/328,037.02 = 128,815.81/x
  3. Step 3: Cross multiply
    237,708.45x = 328,037.02 × 128,815.81
  4. Step 4: Simplify right side
    237,708.45x = 42,256,352,801.10
  5. Step 5: Solve for x
    x = 42,256,352,801.10/237,708.45
  6. Step 6: Final answer
    x = 177,765.46

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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.