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Finding the Fourth Proportional to 169,485.08, 253,009.15 and 157,181.72

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Solution

The fourth proportional to 169,485.08, 253,009.15 and 157,181.72 is: 234,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,485.08 : 253,009.15 = 157,181.72 : x
  2. Step 2: Convert to fraction form
    169,485.08/253,009.15 = 157,181.72/x
  3. Step 3: Cross multiply
    169,485.08x = 253,009.15 × 157,181.72
  4. Step 4: Simplify right side
    169,485.08x = 39,768,413,372.74
  5. Step 5: Solve for x
    x = 39,768,413,372.74/169,485.08
  6. Step 6: Final answer
    x = 234,642.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.