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Finding the Fourth Proportional to 353,844.72, 488,326.23 and 266,473.40

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Solution

The fourth proportional to 353,844.72, 488,326.23 and 266,473.40 is: 367,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,844.72 : 488,326.23 = 266,473.40 : x
  2. Step 2: Convert to fraction form
    353,844.72/488,326.23 = 266,473.40/x
  3. Step 3: Cross multiply
    353,844.72x = 488,326.23 × 266,473.40
  4. Step 4: Simplify right side
    353,844.72x = 130,125,948,375.65
  5. Step 5: Solve for x
    x = 130,125,948,375.65/353,844.72
  6. Step 6: Final answer
    x = 367,748.74

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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.