Home / 280,454.59-420,613.84-93,441.79

Finding the Fourth Proportional to 280,454.59, 420,613.84 and 93,441.79

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Solution

The fourth proportional to 280,454.59, 420,613.84 and 93,441.79 is: 140,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,454.59 : 420,613.84 = 93,441.79 : x
  2. Step 2: Convert to fraction form
    280,454.59/420,613.84 = 93,441.79/x
  3. Step 3: Cross multiply
    280,454.59x = 420,613.84 × 93,441.79
  4. Step 4: Simplify right side
    280,454.59x = 39,302,910,108.37
  5. Step 5: Solve for x
    x = 39,302,910,108.37/280,454.59
  6. Step 6: Final answer
    x = 140,140.01

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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.