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Finding the Fourth Proportional to 319,050.60, 478,575.90 and 194,634.60

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Solution

The fourth proportional to 319,050.60, 478,575.90 and 194,634.60 is: 291,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,050.60 : 478,575.90 = 194,634.60 : x
  2. Step 2: Convert to fraction form
    319,050.60/478,575.90 = 194,634.60/x
  3. Step 3: Cross multiply
    319,050.60x = 478,575.90 × 194,634.60
  4. Step 4: Simplify right side
    319,050.60x = 93,147,428,866.14
  5. Step 5: Solve for x
    x = 93,147,428,866.14/319,050.60
  6. Step 6: Final answer
    x = 291,951.90

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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.