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Finding the Fourth Proportional to 358,003.36, 494,040.90 and 266,531.65

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Solution

The fourth proportional to 358,003.36, 494,040.90 and 266,531.65 is: 367,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,003.36 : 494,040.90 = 266,531.65 : x
  2. Step 2: Convert to fraction form
    358,003.36/494,040.90 = 266,531.65/x
  3. Step 3: Cross multiply
    358,003.36x = 494,040.90 × 266,531.65
  4. Step 4: Simplify right side
    358,003.36x = 131,677,536,008.88
  5. Step 5: Solve for x
    x = 131,677,536,008.88/358,003.36
  6. Step 6: Final answer
    x = 367,810.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.