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Finding the Fourth Proportional to 459,605.66, 690,054.36 and 235,127.12

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Solution

The fourth proportional to 459,605.66, 690,054.36 and 235,127.12 is: 353,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,605.66 : 690,054.36 = 235,127.12 : x
  2. Step 2: Convert to fraction form
    459,605.66/690,054.36 = 235,127.12/x
  3. Step 3: Cross multiply
    459,605.66x = 690,054.36 × 235,127.12
  4. Step 4: Simplify right side
    459,605.66x = 162,250,494,310.24
  5. Step 5: Solve for x
    x = 162,250,494,310.24/459,605.66
  6. Step 6: Final answer
    x = 353,021.10

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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.