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Finding the Fourth Proportional to 319,880.09, 479,792.22 and 130,360.34

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Solution

The fourth proportional to 319,880.09, 479,792.22 and 130,360.34 is: 195,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,880.09 : 479,792.22 = 130,360.34 : x
  2. Step 2: Convert to fraction form
    319,880.09/479,792.22 = 130,360.34/x
  3. Step 3: Cross multiply
    319,880.09x = 479,792.22 × 130,360.34
  4. Step 4: Simplify right side
    319,880.09x = 62,545,876,928.55
  5. Step 5: Solve for x
    x = 62,545,876,928.55/319,880.09
  6. Step 6: Final answer
    x = 195,529.13

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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.