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Finding the Fourth Proportional to 219,925.96, 329,889.26 and 79,651.72

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Solution

The fourth proportional to 219,925.96, 329,889.26 and 79,651.72 is: 119,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,925.96 : 329,889.26 = 79,651.72 : x
  2. Step 2: Convert to fraction form
    219,925.96/329,889.26 = 79,651.72/x
  3. Step 3: Cross multiply
    219,925.96x = 329,889.26 × 79,651.72
  4. Step 4: Simplify right side
    219,925.96x = 26,276,246,968.53
  5. Step 5: Solve for x
    x = 26,276,246,968.53/219,925.96
  6. Step 6: Final answer
    x = 119,477.70

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1.5x scale

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.