Home / 266,205.34-398,095.17-198,784.72

Finding the Fourth Proportional to 266,205.34, 398,095.17 and 198,784.72

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Solution

The fourth proportional to 266,205.34, 398,095.17 and 198,784.72 is: 297,271.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,205.34 : 398,095.17 = 198,784.72 : x
  2. Step 2: Convert to fraction form
    266,205.34/398,095.17 = 198,784.72/x
  3. Step 3: Cross multiply
    266,205.34x = 398,095.17 × 198,784.72
  4. Step 4: Simplify right side
    266,205.34x = 79,135,236,901.80
  5. Step 5: Solve for x
    x = 79,135,236,901.80/266,205.34
  6. Step 6: Final answer
    x = 297,271.41

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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.