Home / 280,394.42-387,083.04-173,023.58

Finding the Fourth Proportional to 280,394.42, 387,083.04 and 173,023.58

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Solution

The fourth proportional to 280,394.42, 387,083.04 and 173,023.58 is: 238,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,394.42 : 387,083.04 = 173,023.58 : x
  2. Step 2: Convert to fraction form
    280,394.42/387,083.04 = 173,023.58/x
  3. Step 3: Cross multiply
    280,394.42x = 387,083.04 × 173,023.58
  4. Step 4: Simplify right side
    280,394.42x = 66,974,493,338.08
  5. Step 5: Solve for x
    x = 66,974,493,338.08/280,394.42
  6. Step 6: Final answer
    x = 238,858.15

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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.