Home / 218,930.50-328,409.61-92,547.18

Finding the Fourth Proportional to 218,930.50, 328,409.61 and 92,547.18

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Solution

The fourth proportional to 218,930.50, 328,409.61 and 92,547.18 is: 138,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,930.50 : 328,409.61 = 92,547.18 : x
  2. Step 2: Convert to fraction form
    218,930.50/328,409.61 = 92,547.18/x
  3. Step 3: Cross multiply
    218,930.50x = 328,409.61 × 92,547.18
  4. Step 4: Simplify right side
    218,930.50x = 30,393,384,647.87
  5. Step 5: Solve for x
    x = 30,393,384,647.87/218,930.50
  6. Step 6: Final answer
    x = 138,826.64

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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.