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Finding the Fourth Proportional to 440,407.82, 660,425.82 and 136,764.74

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Solution

The fourth proportional to 440,407.82, 660,425.82 and 136,764.74 is: 205,089.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,407.82 : 660,425.82 = 136,764.74 : x
  2. Step 2: Convert to fraction form
    440,407.82/660,425.82 = 136,764.74/x
  3. Step 3: Cross multiply
    440,407.82x = 660,425.82 × 136,764.74
  4. Step 4: Simplify right side
    440,407.82x = 90,322,962,259.46
  5. Step 5: Solve for x
    x = 90,322,962,259.46/440,407.82
  6. Step 6: Final answer
    x = 205,089.37

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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.