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Finding the Fourth Proportional to 202,908.62, 304,298.40 and 69,756.86

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Solution

The fourth proportional to 202,908.62, 304,298.40 and 69,756.86 is: 104,613.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,908.62 : 304,298.40 = 69,756.86 : x
  2. Step 2: Convert to fraction form
    202,908.62/304,298.40 = 69,756.86/x
  3. Step 3: Cross multiply
    202,908.62x = 304,298.40 × 69,756.86
  4. Step 4: Simplify right side
    202,908.62x = 21,226,900,887.02
  5. Step 5: Solve for x
    x = 21,226,900,887.02/202,908.62
  6. Step 6: Final answer
    x = 104,613.11

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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.