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Finding the Fourth Proportional to 612,573.14, 918,903.48 and 163,291.70

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Solution

The fourth proportional to 612,573.14, 918,903.48 and 163,291.70 is: 244,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,573.14 : 918,903.48 = 163,291.70 : x
  2. Step 2: Convert to fraction form
    612,573.14/918,903.48 = 163,291.70/x
  3. Step 3: Cross multiply
    612,573.14x = 918,903.48 × 163,291.70
  4. Step 4: Simplify right side
    612,573.14x = 150,049,311,385.12
  5. Step 5: Solve for x
    x = 150,049,311,385.12/612,573.14
  6. Step 6: Final answer
    x = 244,949.22

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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.