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Finding the Fourth Proportional to 440,448.51, 660,771.18 and 140,947.07

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Solution

The fourth proportional to 440,448.51, 660,771.18 and 140,947.07 is: 211,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,448.51 : 660,771.18 = 140,947.07 : x
  2. Step 2: Convert to fraction form
    440,448.51/660,771.18 = 140,947.07/x
  3. Step 3: Cross multiply
    440,448.51x = 660,771.18 × 140,947.07
  4. Step 4: Simplify right side
    440,448.51x = 93,133,758,457.59
  5. Step 5: Solve for x
    x = 93,133,758,457.59/440,448.51
  6. Step 6: Final answer
    x = 211,452.09

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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.