Home / 309,818.22-427,547.94-173,851.85

Finding the Fourth Proportional to 309,818.22, 427,547.94 and 173,851.85

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Solution

The fourth proportional to 309,818.22, 427,547.94 and 173,851.85 is: 239,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,818.22 : 427,547.94 = 173,851.85 : x
  2. Step 2: Convert to fraction form
    309,818.22/427,547.94 = 173,851.85/x
  3. Step 3: Cross multiply
    309,818.22x = 427,547.94 × 173,851.85
  4. Step 4: Simplify right side
    309,818.22x = 74,329,998,194.95
  5. Step 5: Solve for x
    x = 74,329,998,194.95/309,818.22
  6. Step 6: Final answer
    x = 239,914.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.