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Finding the Fourth Proportional to 440,087.40, 660,131.10 and 107,663.40

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Solution

The fourth proportional to 440,087.40, 660,131.10 and 107,663.40 is: 161,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,087.40 : 660,131.10 = 107,663.40 : x
  2. Step 2: Convert to fraction form
    440,087.40/660,131.10 = 107,663.40/x
  3. Step 3: Cross multiply
    440,087.40x = 660,131.10 × 107,663.40
  4. Step 4: Simplify right side
    440,087.40x = 71,071,958,671.74
  5. Step 5: Solve for x
    x = 71,071,958,671.74/440,087.40
  6. Step 6: Final answer
    x = 161,495.10

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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.