Home / 260,179.24-390,400.08-102,520.84

Finding the Fourth Proportional to 260,179.24, 390,400.08 and 102,520.84

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Solution

The fourth proportional to 260,179.24, 390,400.08 and 102,520.84 is: 153,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,179.24 : 390,400.08 = 102,520.84 : x
  2. Step 2: Convert to fraction form
    260,179.24/390,400.08 = 102,520.84/x
  3. Step 3: Cross multiply
    260,179.24x = 390,400.08 × 102,520.84
  4. Step 4: Simplify right side
    260,179.24x = 40,024,144,137.67
  5. Step 5: Solve for x
    x = 40,024,144,137.67/260,179.24
  6. Step 6: Final answer
    x = 153,832.97

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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.