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Finding the Fourth Proportional to 479,124.60, 718,686.90 and 163,534.20

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Solution

The fourth proportional to 479,124.60, 718,686.90 and 163,534.20 is: 245,301.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,124.60 : 718,686.90 = 163,534.20 : x
  2. Step 2: Convert to fraction form
    479,124.60/718,686.90 = 163,534.20/x
  3. Step 3: Cross multiply
    479,124.60x = 718,686.90 × 163,534.20
  4. Step 4: Simplify right side
    479,124.60x = 117,529,887,241.98
  5. Step 5: Solve for x
    x = 117,529,887,241.98/479,124.60
  6. Step 6: Final answer
    x = 245,301.30

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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.