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Finding the Fourth Proportional to 135,329.80, 202,908.30 and 56,475.40

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Solution

The fourth proportional to 135,329.80, 202,908.30 and 56,475.40 is: 84,677.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,329.80 : 202,908.30 = 56,475.40 : x
  2. Step 2: Convert to fraction form
    135,329.80/202,908.30 = 56,475.40/x
  3. Step 3: Cross multiply
    135,329.80x = 202,908.30 × 56,475.40
  4. Step 4: Simplify right side
    135,329.80x = 11,459,327,405.82
  5. Step 5: Solve for x
    x = 11,459,327,405.82/135,329.80
  6. Step 6: Final answer
    x = 84,677.04

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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.