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Finding the Fourth Proportional to 330,060.80, 455,485.37 and 186,848.54

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Solution

The fourth proportional to 330,060.80, 455,485.37 and 186,848.54 is: 257,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,060.80 : 455,485.37 = 186,848.54 : x
  2. Step 2: Convert to fraction form
    330,060.80/455,485.37 = 186,848.54/x
  3. Step 3: Cross multiply
    330,060.80x = 455,485.37 × 186,848.54
  4. Step 4: Simplify right side
    330,060.80x = 85,106,773,164.19
  5. Step 5: Solve for x
    x = 85,106,773,164.19/330,060.80
  6. Step 6: Final answer
    x = 257,851.81

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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.