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Finding the Fourth Proportional to 253,425.12, 379,380.30 and 153,282.42

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Solution

The fourth proportional to 253,425.12, 379,380.30 and 153,282.42 is: 229,465.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,425.12 : 379,380.30 = 153,282.42 : x
  2. Step 2: Convert to fraction form
    253,425.12/379,380.30 = 153,282.42/x
  3. Step 3: Cross multiply
    253,425.12x = 379,380.30 × 153,282.42
  4. Step 4: Simplify right side
    253,425.12x = 58,152,330,484.33
  5. Step 5: Solve for x
    x = 58,152,330,484.33/253,425.12
  6. Step 6: Final answer
    x = 229,465.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.