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Finding the Fourth Proportional to 219,085.59, 328,624.98 and 112,407.99

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Solution

The fourth proportional to 219,085.59, 328,624.98 and 112,407.99 is: 168,610.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,085.59 : 328,624.98 = 112,407.99 : x
  2. Step 2: Convert to fraction form
    219,085.59/328,624.98 = 112,407.99/x
  3. Step 3: Cross multiply
    219,085.59x = 328,624.98 × 112,407.99
  4. Step 4: Simplify right side
    219,085.59x = 36,940,073,465.59
  5. Step 5: Solve for x
    x = 36,940,073,465.59/219,085.59
  6. Step 6: Final answer
    x = 168,610.24

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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.