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Finding the Fourth Proportional to 163,690.34, 245,538.68 and 51,374.21

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Solution

The fourth proportional to 163,690.34, 245,538.68 and 51,374.21 is: 77,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,690.34 : 245,538.68 = 51,374.21 : x
  2. Step 2: Convert to fraction form
    163,690.34/245,538.68 = 51,374.21/x
  3. Step 3: Cross multiply
    163,690.34x = 245,538.68 × 51,374.21
  4. Step 4: Simplify right side
    163,690.34x = 12,614,354,224.88
  5. Step 5: Solve for x
    x = 12,614,354,224.88/163,690.34
  6. Step 6: Final answer
    x = 77,062.30

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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.