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Finding the Fourth Proportional to 319,317.45, 478,978.13 and 94,680.01

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Solution

The fourth proportional to 319,317.45, 478,978.13 and 94,680.01 is: 142,020.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,317.45 : 478,978.13 = 94,680.01 : x
  2. Step 2: Convert to fraction form
    319,317.45/478,978.13 = 94,680.01/x
  3. Step 3: Cross multiply
    319,317.45x = 478,978.13 × 94,680.01
  4. Step 4: Simplify right side
    319,317.45x = 45,349,654,138.18
  5. Step 5: Solve for x
    x = 45,349,654,138.18/319,317.45
  6. Step 6: Final answer
    x = 142,020.59

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