Home / 260,399.48-390,614.45-100,476.27

Finding the Fourth Proportional to 260,399.48, 390,614.45 and 100,476.27

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Solution

The fourth proportional to 260,399.48, 390,614.45 and 100,476.27 is: 150,720.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,399.48 : 390,614.45 = 100,476.27 : x
  2. Step 2: Convert to fraction form
    260,399.48/390,614.45 = 100,476.27/x
  3. Step 3: Cross multiply
    260,399.48x = 390,614.45 × 100,476.27
  4. Step 4: Simplify right side
    260,399.48x = 39,247,482,441.72
  5. Step 5: Solve for x
    x = 39,247,482,441.72/260,399.48
  6. Step 6: Final answer
    x = 150,720.28

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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.