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Finding the Fourth Proportional to 353,700, 487,025.04 and 266,611.64

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Solution

The fourth proportional to 353,700, 487,025.04 and 266,611.64 is: 367,109.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,700 : 487,025.04 = 266,611.64 : x
  2. Step 2: Convert to fraction form
    353,700/487,025.04 = 266,611.64/x
  3. Step 3: Cross multiply
    353,700x = 487,025.04 × 266,611.64
  4. Step 4: Simplify right side
    353,700x = 129,846,544,635.47
  5. Step 5: Solve for x
    x = 129,846,544,635.47/353,700
  6. Step 6: Final answer
    x = 367,109.26

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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.