Home / 237,335.79-327,520.61-128,437.60

Finding the Fourth Proportional to 237,335.79, 327,520.61 and 128,437.60

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Solution

The fourth proportional to 237,335.79, 327,520.61 and 128,437.60 is: 177,242.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,335.79 : 327,520.61 = 128,437.60 : x
  2. Step 2: Convert to fraction form
    237,335.79/327,520.61 = 128,437.60/x
  3. Step 3: Cross multiply
    237,335.79x = 327,520.61 × 128,437.60
  4. Step 4: Simplify right side
    237,335.79x = 42,065,961,098.94
  5. Step 5: Solve for x
    x = 42,065,961,098.94/237,335.79
  6. Step 6: Final answer
    x = 177,242.38

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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.