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Finding the Fourth Proportional to 163,511.80, 245,923.80 and 146,453.20

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Solution

The fourth proportional to 163,511.80, 245,923.80 and 146,453.20 is: 220,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,511.80 : 245,923.80 = 146,453.20 : x
  2. Step 2: Convert to fraction form
    163,511.80/245,923.80 = 146,453.20/x
  3. Step 3: Cross multiply
    163,511.80x = 245,923.80 × 146,453.20
  4. Step 4: Simplify right side
    163,511.80x = 36,016,327,466.16
  5. Step 5: Solve for x
    x = 36,016,327,466.16/163,511.80
  6. Step 6: Final answer
    x = 220,267.45

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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.