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Finding the Fourth Proportional to 402,274.08, 603,488.88 and 136,077.84

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Solution

The fourth proportional to 402,274.08, 603,488.88 and 136,077.84 is: 204,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,274.08 : 603,488.88 = 136,077.84 : x
  2. Step 2: Convert to fraction form
    402,274.08/603,488.88 = 136,077.84/x
  3. Step 3: Cross multiply
    402,274.08x = 603,488.88 × 136,077.84
  4. Step 4: Simplify right side
    402,274.08x = 82,121,463,254.42
  5. Step 5: Solve for x
    x = 82,121,463,254.42/402,274.08
  6. Step 6: Final answer
    x = 204,143.06

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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.