Home / 280,040.08-420,133.92-146,884.58

Finding the Fourth Proportional to 280,040.08, 420,133.92 and 146,884.58

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Solution

The fourth proportional to 280,040.08, 420,133.92 and 146,884.58 is: 220,365.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,040.08 : 420,133.92 = 146,884.58 : x
  2. Step 2: Convert to fraction form
    280,040.08/420,133.92 = 146,884.58/x
  3. Step 3: Cross multiply
    280,040.08x = 420,133.92 × 146,884.58
  4. Step 4: Simplify right side
    280,040.08x = 61,711,194,382.95
  5. Step 5: Solve for x
    x = 61,711,194,382.95/280,040.08
  6. Step 6: Final answer
    x = 220,365.58

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1.5x scale

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.