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Finding the Fourth Proportional to 296,775.09, 445,158.68 and 72,134.91

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Solution

The fourth proportional to 296,775.09, 445,158.68 and 72,134.91 is: 108,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,775.09 : 445,158.68 = 72,134.91 : x
  2. Step 2: Convert to fraction form
    296,775.09/445,158.68 = 72,134.91/x
  3. Step 3: Cross multiply
    296,775.09x = 445,158.68 × 72,134.91
  4. Step 4: Simplify right side
    296,775.09x = 32,111,480,956.84
  5. Step 5: Solve for x
    x = 32,111,480,956.84/296,775.09
  6. Step 6: Final answer
    x = 108,201.40

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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.