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Finding the Fourth Proportional to 198,590.40, 297,806.88 and 156,551.28

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Solution

The fourth proportional to 198,590.40, 297,806.88 and 156,551.28 is: 234,764.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,590.40 : 297,806.88 = 156,551.28 : x
  2. Step 2: Convert to fraction form
    198,590.40/297,806.88 = 156,551.28/x
  3. Step 3: Cross multiply
    198,590.40x = 297,806.88 × 156,551.28
  4. Step 4: Simplify right side
    198,590.40x = 46,622,048,256.81
  5. Step 5: Solve for x
    x = 46,622,048,256.81/198,590.40
  6. Step 6: Final answer
    x = 234,764.86

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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.