Home / 309,823.98-427,555.88-173,857.62

Finding the Fourth Proportional to 309,823.98, 427,555.88 and 173,857.62

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Solution

The fourth proportional to 309,823.98, 427,555.88 and 173,857.62 is: 239,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,823.98 : 427,555.88 = 173,857.62 : x
  2. Step 2: Convert to fraction form
    309,823.98/427,555.88 = 173,857.62/x
  3. Step 3: Cross multiply
    309,823.98x = 427,555.88 × 173,857.62
  4. Step 4: Simplify right side
    309,823.98x = 74,333,847,713.81
  5. Step 5: Solve for x
    x = 74,333,847,713.81/309,823.98
  6. Step 6: Final answer
    x = 239,922.84

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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.