Home / 280,635.24-420,956.46-93,646.74

Finding the Fourth Proportional to 280,635.24, 420,956.46 and 93,646.74

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Solution

The fourth proportional to 280,635.24, 420,956.46 and 93,646.74 is: 140,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,635.24 : 420,956.46 = 93,646.74 : x
  2. Step 2: Convert to fraction form
    280,635.24/420,956.46 = 93,646.74/x
  3. Step 3: Cross multiply
    280,635.24x = 420,956.46 × 93,646.74
  4. Step 4: Simplify right side
    280,635.24x = 39,421,200,160.94
  5. Step 5: Solve for x
    x = 39,421,200,160.94/280,635.24
  6. Step 6: Final answer
    x = 140,471.31

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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.