Home / 190,360.60-285,195.30-155,109.40

Finding the Fourth Proportional to 190,360.60, 285,195.30 and 155,109.40

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Solution

The fourth proportional to 190,360.60, 285,195.30 and 155,109.40 is: 232,382.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,360.60 : 285,195.30 = 155,109.40 : x
  2. Step 2: Convert to fraction form
    190,360.60/285,195.30 = 155,109.40/x
  3. Step 3: Cross multiply
    190,360.60x = 285,195.30 × 155,109.40
  4. Step 4: Simplify right side
    190,360.60x = 44,236,471,865.82
  5. Step 5: Solve for x
    x = 44,236,471,865.82/190,360.60
  6. Step 6: Final answer
    x = 232,382.50

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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.