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Finding the Fourth Proportional to 319,082.67, 478,707.03 and 119,418.75

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Solution

The fourth proportional to 319,082.67, 478,707.03 and 119,418.75 is: 179,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,082.67 : 478,707.03 = 119,418.75 : x
  2. Step 2: Convert to fraction form
    319,082.67/478,707.03 = 119,418.75/x
  3. Step 3: Cross multiply
    319,082.67x = 478,707.03 × 119,418.75
  4. Step 4: Simplify right side
    319,082.67x = 57,166,595,138.81
  5. Step 5: Solve for x
    x = 57,166,595,138.81/319,082.67
  6. Step 6: Final answer
    x = 179,159.20

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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.