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Finding the Fourth Proportional to 301,210.11, 451,818.41 and 90,849.87

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Solution

The fourth proportional to 301,210.11, 451,818.41 and 90,849.87 is: 136,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,210.11 : 451,818.41 = 90,849.87 : x
  2. Step 2: Convert to fraction form
    301,210.11/451,818.41 = 90,849.87/x
  3. Step 3: Cross multiply
    301,210.11x = 451,818.41 × 90,849.87
  4. Step 4: Simplify right side
    301,210.11x = 41,047,643,357.86
  5. Step 5: Solve for x
    x = 41,047,643,357.86/301,210.11
  6. Step 6: Final answer
    x = 136,275.78

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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.