Home / 220,394.12-304,137.50-124,909.64

Finding the Fourth Proportional to 220,394.12, 304,137.50 and 124,909.64

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Solution

The fourth proportional to 220,394.12, 304,137.50 and 124,909.64 is: 172,371.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,394.12 : 304,137.50 = 124,909.64 : x
  2. Step 2: Convert to fraction form
    220,394.12/304,137.50 = 124,909.64/x
  3. Step 3: Cross multiply
    220,394.12x = 304,137.50 × 124,909.64
  4. Step 4: Simplify right side
    220,394.12x = 37,989,705,635.50
  5. Step 5: Solve for x
    x = 37,989,705,635.50/220,394.12
  6. Step 6: Final answer
    x = 172,371.68

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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.