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Finding the Fourth Proportional to 319,369.02, 479,153.32 and 94,730.72

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Solution

The fourth proportional to 319,369.02, 479,153.32 and 94,730.72 is: 142,125.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,369.02 : 479,153.32 = 94,730.72 : x
  2. Step 2: Convert to fraction form
    319,369.02/479,153.32 = 94,730.72/x
  3. Step 3: Cross multiply
    319,369.02x = 479,153.32 × 94,730.72
  4. Step 4: Simplify right side
    319,369.02x = 45,390,538,993.99
  5. Step 5: Solve for x
    x = 45,390,538,993.99/319,369.02
  6. Step 6: Final answer
    x = 142,125.68

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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.