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Finding the Fourth Proportional to 459,653.82, 690,126.66 and 235,175.28

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Solution

The fourth proportional to 459,653.82, 690,126.66 and 235,175.28 is: 353,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,653.82 : 690,126.66 = 235,175.28 : x
  2. Step 2: Convert to fraction form
    459,653.82/690,126.66 = 235,175.28/x
  3. Step 3: Cross multiply
    459,653.82x = 690,126.66 × 235,175.28
  4. Step 4: Simplify right side
    459,653.82x = 162,300,730,500.97
  5. Step 5: Solve for x
    x = 162,300,730,500.97/459,653.82
  6. Step 6: Final answer
    x = 353,093.40

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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.