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Finding the Fourth Proportional to 163,930.40, 245,895.60 and 146,304.80

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Solution

The fourth proportional to 163,930.40, 245,895.60 and 146,304.80 is: 219,457.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,930.40 : 245,895.60 = 146,304.80 : x
  2. Step 2: Convert to fraction form
    163,930.40/245,895.60 = 146,304.80/x
  3. Step 3: Cross multiply
    163,930.40x = 245,895.60 × 146,304.80
  4. Step 4: Simplify right side
    163,930.40x = 35,975,706,578.88
  5. Step 5: Solve for x
    x = 35,975,706,578.88/163,930.40
  6. Step 6: Final answer
    x = 219,457.20

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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.