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Finding the Fourth Proportional to 253,379.31, 349,639.64 and 171,541.08

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Solution

The fourth proportional to 253,379.31, 349,639.64 and 171,541.08 is: 236,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,379.31 : 349,639.64 = 171,541.08 : x
  2. Step 2: Convert to fraction form
    253,379.31/349,639.64 = 171,541.08/x
  3. Step 3: Cross multiply
    253,379.31x = 349,639.64 × 171,541.08
  4. Step 4: Simplify right side
    253,379.31x = 59,977,560,598.71
  5. Step 5: Solve for x
    x = 59,977,560,598.71/253,379.31
  6. Step 6: Final answer
    x = 236,710.57

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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.