Home / 260,117.70-390,249.45-127,002.30

Finding the Fourth Proportional to 260,117.70, 390,249.45 and 127,002.30

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Solution

The fourth proportional to 260,117.70, 390,249.45 and 127,002.30 is: 190,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,117.70 : 390,249.45 = 127,002.30 : x
  2. Step 2: Convert to fraction form
    260,117.70/390,249.45 = 127,002.30/x
  3. Step 3: Cross multiply
    260,117.70x = 390,249.45 × 127,002.30
  4. Step 4: Simplify right side
    260,117.70x = 49,562,577,723.74
  5. Step 5: Solve for x
    x = 49,562,577,723.74/260,117.70
  6. Step 6: Final answer
    x = 190,539.04

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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.