Home / 198,017.40-296,507.70-145,140.60

Finding the Fourth Proportional to 198,017.40, 296,507.70 and 145,140.60

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Solution

The fourth proportional to 198,017.40, 296,507.70 and 145,140.60 is: 217,330.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,017.40 : 296,507.70 = 145,140.60 : x
  2. Step 2: Convert to fraction form
    198,017.40/296,507.70 = 145,140.60/x
  3. Step 3: Cross multiply
    198,017.40x = 296,507.70 × 145,140.60
  4. Step 4: Simplify right side
    198,017.40x = 43,035,305,482.62
  5. Step 5: Solve for x
    x = 43,035,305,482.62/198,017.40
  6. Step 6: Final answer
    x = 217,330.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.