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Finding the Fourth Proportional to 490,952.58, 736,428.96 and 135,966.66

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Solution

The fourth proportional to 490,952.58, 736,428.96 and 135,966.66 is: 203,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,952.58 : 736,428.96 = 135,966.66 : x
  2. Step 2: Convert to fraction form
    490,952.58/736,428.96 = 135,966.66/x
  3. Step 3: Cross multiply
    490,952.58x = 736,428.96 × 135,966.66
  4. Step 4: Simplify right side
    490,952.58x = 100,129,786,018.47
  5. Step 5: Solve for x
    x = 100,129,786,018.47/490,952.58
  6. Step 6: Final answer
    x = 203,950.01

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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.