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Finding the Fourth Proportional to 253,425.27, 349,641.45 and 145,992.54

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Solution

The fourth proportional to 253,425.27, 349,641.45 and 145,992.54 is: 201,420.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,425.27 : 349,641.45 = 145,992.54 : x
  2. Step 2: Convert to fraction form
    253,425.27/349,641.45 = 145,992.54/x
  3. Step 3: Cross multiply
    253,425.27x = 349,641.45 × 145,992.54
  4. Step 4: Simplify right side
    253,425.27x = 51,045,043,374.78
  5. Step 5: Solve for x
    x = 51,045,043,374.78/253,425.27
  6. Step 6: Final answer
    x = 201,420.50

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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.