Home / 440,228.28-660,638.33-155,917.80

Finding the Fourth Proportional to 440,228.28, 660,638.33 and 155,917.80

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Solution

The fourth proportional to 440,228.28, 660,638.33 and 155,917.80 is: 233,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,228.28 : 660,638.33 = 155,917.80 : x
  2. Step 2: Convert to fraction form
    440,228.28/660,638.33 = 155,917.80/x
  3. Step 3: Cross multiply
    440,228.28x = 660,638.33 × 155,917.80
  4. Step 4: Simplify right side
    440,228.28x = 103,005,275,009.27
  5. Step 5: Solve for x
    x = 103,005,275,009.27/440,228.28
  6. Step 6: Final answer
    x = 233,981.50

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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.