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Finding the Fourth Proportional to 310,780.58, 428,872.85 and 174,814.53

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Solution

The fourth proportional to 310,780.58, 428,872.85 and 174,814.53 is: 241,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,780.58 : 428,872.85 = 174,814.53 : x
  2. Step 2: Convert to fraction form
    310,780.58/428,872.85 = 174,814.53/x
  3. Step 3: Cross multiply
    310,780.58x = 428,872.85 × 174,814.53
  4. Step 4: Simplify right side
    310,780.58x = 74,973,203,875.72
  5. Step 5: Solve for x
    x = 74,973,203,875.72/310,780.58
  6. Step 6: Final answer
    x = 241,241.60

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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.