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Finding the Fourth Proportional to 353,176.34, 487,379.68 and 262,935.86

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Solution

The fourth proportional to 353,176.34, 487,379.68 and 262,935.86 is: 362,848.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,176.34 : 487,379.68 = 262,935.86 : x
  2. Step 2: Convert to fraction form
    353,176.34/487,379.68 = 262,935.86/x
  3. Step 3: Cross multiply
    353,176.34x = 487,379.68 × 262,935.86
  4. Step 4: Simplify right side
    353,176.34x = 128,149,592,213.09
  5. Step 5: Solve for x
    x = 128,149,592,213.09/353,176.34
  6. Step 6: Final answer
    x = 362,848.75

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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.