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Finding the Fourth Proportional to 260,108.16, 390,156.56 and 119,866.92

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Solution

The fourth proportional to 260,108.16, 390,156.56 and 119,866.92 is: 179,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,108.16 : 390,156.56 = 119,866.92 : x
  2. Step 2: Convert to fraction form
    260,108.16/390,156.56 = 119,866.92/x
  3. Step 3: Cross multiply
    260,108.16x = 390,156.56 × 119,866.92
  4. Step 4: Simplify right side
    260,108.16x = 46,766,865,165.00
  5. Step 5: Solve for x
    x = 46,766,865,165.00/260,108.16
  6. Step 6: Final answer
    x = 179,797.76

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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.