Home / 237,330.87-327,515.40-128,435.13

Finding the Fourth Proportional to 237,330.87, 327,515.40 and 128,435.13

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Solution

The fourth proportional to 237,330.87, 327,515.40 and 128,435.13 is: 177,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,330.87 : 327,515.40 = 128,435.13 : x
  2. Step 2: Convert to fraction form
    237,330.87/327,515.40 = 128,435.13/x
  3. Step 3: Cross multiply
    237,330.87x = 327,515.40 × 128,435.13
  4. Step 4: Simplify right side
    237,330.87x = 42,064,482,976.00
  5. Step 5: Solve for x
    x = 42,064,482,976.00/237,330.87
  6. Step 6: Final answer
    x = 177,239.83

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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.