Home / 342,021.20-512,584.40-183,909.20

Finding the Fourth Proportional to 342,021.20, 512,584.40 and 183,909.20

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Solution

The fourth proportional to 342,021.20, 512,584.40 and 183,909.20 is: 275,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,021.20 : 512,584.40 = 183,909.20 : x
  2. Step 2: Convert to fraction form
    342,021.20/512,584.40 = 183,909.20/x
  3. Step 3: Cross multiply
    342,021.20x = 512,584.40 × 183,909.20
  4. Step 4: Simplify right side
    342,021.20x = 94,268,986,936.48
  5. Step 5: Solve for x
    x = 94,268,986,936.48/342,021.20
  6. Step 6: Final answer
    x = 275,623.23

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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.